A standard fresh IVF cycle calendar runs about 3 to 5 weeks from cycle day 1 to the pregnancy test: 8-14 days of stimulation injections, a trigger shot, egg retrieval 34-36 hours later, and embryo transfer on day 3 or day 5. Your exact calendar depends on your stimulation protocol, your doctor’s habits, and how your ovaries respond.
This guide walks through the most common antagonist-protocol calendar day by day, explains how frozen embryo transfer (FET) calendars differ, and includes a printable schedule you can take to your clinic.
Data in this article is sourced from the CDC National ART Surveillance System, public ASRM and SART patient resources, and peer-reviewed medical literature, compiled by the ProIVF Medical Editorial Team and reviewed by the ProIVF Medical Advisory Board.
What Is an IVF Cycle Calendar?
An IVF calendar is the clinic’s operational plan for your cycle: for each day it lists which medication to take, at what dose, and when you need bloodwork or an ultrasound. It exists because IVF stimulation is tightly timed — medications are dosed relative to your menstrual cycle, and the plan is adjusted at nearly every monitoring visit.
The underlying process is standard everywhere. As the CDC puts it:
“In vitro fertilization (IVF) is a series of procedures that combine eggs and sperm for artificial fertilization, and to establish a pregnancy.” — U.S. Centers for Disease Control and Prevention, Assisted Reproductive Technology program documentation (2024)
If you are new to the overall process, start with our IVF cycle overview before digging into the daily schedule.
Two clocks matter on an IVF calendar:
| Clock | Definition | Example |
|---|---|---|
| Cycle day (CD) | Days of your menstrual cycle, counting from day 1 of your period | CD2 = second day of full flow |
| Treatment day | Days since stimulation started | Stim day 1 = first follicle-stimulating hormone (FSH) injection |
Different clinics label calendars differently — some count from cycle day 1, others from the first injection day. Always confirm which convention your clinic uses; the schedule below uses cycle-day numbering, which is the most common.
What Does a Typical IVF Cycle Calendar Look Like?
Here is a standard fresh-transfer IVF cycle on a calendar: roughly five weeks of planned events from CD1 to the pregnancy test. Exact dates vary by person and protocol.
| Cycle day | What happens | Clinic visit? |
|---|---|---|
| CD1 | First day of full menstrual flow — call your clinic | No |
| CD2–4 | Baseline ultrasound and bloodwork (estradiol, follicle-stimulating hormone (FSH), luteinizing hormone (LH)); start stimulation if approved | Yes |
| CD3–12 | Daily FSH injections (Gonal-F, Follistim, Menopur) | Every 1-3 days |
| CD6–12 | Add gonadotropin-releasing hormone (GnRH) antagonist (Cetrotide, Ganirelix) once lead follicle reaches about 14-15 mm | No |
| Trigger day | Human chorionic gonadotropin (hCG) and/or Lupron trigger shot 34-36 hours before retrieval | Maybe (bloodwork) |
| Retrieval day | Egg retrieval under sedation, 20-30 minutes | Yes |
| Day 3 | Embryo transfer (cleavage stage) or continue culture | Yes (if transferring) |
| Day 5–6 | Embryo transfer (blastocyst stage) or biopsy/freeze | Yes (if transferring) |
| Transfer + 9–14 days | Pregnancy blood test (beta hCG) | Yes |
The numbers above follow standard practice in CDC- and SART-reporting clinics. Always follow the calendar your own clinic provides — your doctor may adjust timing based on your response.
Printable IVF Calendar Template
The blank template below covers the key milestones of an antagonist-protocol fresh transfer cycle. Print it and take it to your clinic — your doctor or coordinator can mark your specific dates.
| Cycle day | What happens | Clinic visit? |
|---|---|---|
| CD1 | First day of full menstrual flow — call your clinic | No |
| CD2–4 | Baseline ultrasound and bloodwork; start stimulation if approved | Yes |
| CD3–12 | Daily FSH injections (Gonal-F, Follistim, Menopur) | Every 1-3 days |
| CD6–12 | Add GnRH antagonist 0.25 mg daily once lead follicle reaches about 14-15 mm | No |
| Trigger day | hCG and/or Lupron trigger shot — note the exact time | Maybe (bloodwork) |
| 34-36 hours after trigger | Egg retrieval (sedation, 20-30 minutes) | Yes |
| Day 3 after retrieval | Cleavage-stage transfer, or continue culture | Yes (if transferring) |
| Day 5–6 after retrieval | Blastocyst transfer, biopsy, or freeze | Yes (if transferring) |
| 9–14 days after transfer | Pregnancy blood test (beta hCG) | Yes |
Confirm your protocol and day-numbering convention with your clinic before printing. The values above are typical ranges; your actual dates depend on monitoring results.
What Counts as Cycle Day 1?
Your IVF calendar almost always starts on cycle day 1 (CD1) — the first day of full menstrual flow, not spotting. Most clinics ask you to call their coordination desk on CD1 so they can schedule your baseline appointment and confirm you can start.
If you are using a programmed (medicated) start — for example with oral contraceptive pills for 10-14 days before stimulation — your clinic will give you a specific start date instead, and your calendar counts from that date rather than from your period.
Stimulation Phase: Days 2-12 of the Calendar
The daily injection schedule
Stimulation typically lasts 8 to 14 days with daily follicle-stimulating hormone (FSH) injections. The most common medications are:
- Gonal-F (follitropin alfa) or Follistim (follitropin beta) — FSH to grow follicles
- Menopur (menotropins) — FSH + LH activity, often combined with Gonal-F
- Starting dose usually ranges from 150 to 300 IU daily, adjusted at monitoring visits
For a closer look at what each medication does, see our IVF medications guide.
A typical day during stimulation looks like:
- Morning: nothing special (or oral medication if prescribed)
- Evening: FSH injection at the same time every day — consistency matters because it affects the stimulation result, which is exactly why the calendar exists
Adding the antagonist
In an antagonist protocol, you add a gonadotropin-releasing hormone (GnRH) antagonist (Cetrotide or Ganirelix, 0.25 mg daily) starting when the lead follicle reaches about 14-15 mm, usually around stimulation day 5-6, to prevent a premature luteinizing hormone (LH) surge — in other words, to stop your body from ovulating the eggs before retrieval. This protocol is supported by a large Cochrane review of 73 randomized trials involving 12,212 women.
Monitoring appointments
You will come in for bloodwork and ultrasound every 1-3 days during stimulation, typically 4-6 visits total, where the doctor measures follicle sizes and estradiol levels, adjusts your FSH dose, and predicts the trigger date. A typical appointment takes 30-60 minutes.
How Long After the Trigger Shot Is Egg Retrieval?
When the lead follicles reach about 17-20 mm, your clinic schedules the trigger shot — egg retrieval follows 34-36 hours later. The trigger is critical because it matures the eggs and starts that final countdown, and we cover its types and timing in detail in our guide to the trigger shot:
- hCG trigger (Novarel, Pregnyl, Ovidrel): retrieval 34-36 hours after injection
- Lupron trigger: usually about 36 hours
- Dual trigger (hCG + Lupron): timing similar, used in some protocols
The trigger shot is usually given at a precise time — often late at night, which is why it is sometimes called the “night shot.” Do not miss this injection or take it at the wrong time; the retrieval is scheduled backwards from it.
On retrieval day, the procedure takes 20-30 minutes under sedation. You will be at the clinic for about 2-3 hours total including recovery, and you cannot drive yourself home. For a full walkthrough of the procedure and recovery, see our guide to egg retrieval.
Embryo Development and Transfer: Day 3 or Day 5
After retrieval, eggs are fertilized and embryos are cultured in the lab for 3-6 days before transfer, biopsy, or freezing:
| Day after retrieval | Embryo stage | What happens |
|---|---|---|
| Day 0 | Retrieval | Eggs collected; fertilization (intracytoplasmic sperm injection (ICSI) or conventional) |
| Day 1 | Pronuclear (PN) | Check whether fertilization occurred |
| Day 2–3 | Cleavage stage (4-8 cells) | Possible transfer; or continue culture |
| Day 5–6 | Blastocyst (100-200 cells) | Transfer, biopsy, or freeze |
Many clinics prefer a day 5 blastocyst transfer because blastocysts have higher implantation rates. Some transfer on day 3 if the embryo quality or the clinic’s policy favors it. If you are doing preimplantation genetic testing for aneuploidy (PGT-A), embryos are biopsied at the blastocyst stage and frozen — the transfer happens in a later FET cycle.
The Two-Week Wait After Transfer
The transfer itself takes about 5-15 minutes and is usually painless. After transfer you begin luteal phase support — progesterone (injections, vaginal suppositories, or gel) and sometimes estrogen — which continues until the pregnancy test; for day-by-day guidance, see our embryo transfer aftercare guide.
The pregnancy blood test (beta hCG) is scheduled 9-14 days after transfer. If positive, you continue medications and schedule a first ultrasound around 6-7 weeks. If negative, you stop medications and your clinic will discuss the next cycle.
How Does a Frozen Embryo Transfer Calendar Differ?
A FET cycle is a separate cycle with usually fewer clinic visits, lasting about 4-6 weeks in total. For a detailed walkthrough of the process, see our guide to frozen embryo transfer.
There are two main calendar types:
| FET protocol | What happens | Transfer timing |
|---|---|---|
| Natural cycle | Track your own ovulation; transfer 5-7 days after LH surge | Matches your natural cycle |
| Medicated (programmed) cycle | Estrogen for ~2 weeks to build the lining, then progesterone | Progesterone start day 1 = transfer day 6-7 |
In a medicated FET, the calendar is mostly about estrogen and progesterone timing — fewer monitoring visits than a fresh cycle, but the medication schedule is just as strict.
How Does Your Stimulation Protocol Change the Calendar?
The calendar above assumes an antagonist protocol, the most common today. Other protocols shift the schedule:
- Long (down-regulation) protocol: GnRH agonist (Lupron) for 2-4 weeks before stimulation; longer calendar, sometimes preferred for endometriosis or previous poor response
- Mini / mild IVF: lower-dose stimulation (often 150 IU or less) or oral medications; fewer injections, fewer monitoring visits
- Natural cycle IVF: no or minimal stimulation; one dominant follicle is tracked and retrieved
Ask your doctor which protocol you are on — it determines whether your calendar is 2 weeks or 6 weeks long.
What If You Miss a Dose or a Monitoring Visit?
Missed doses and rescheduled appointments happen. What to do depends on what was missed:
- FSH injection a few hours late: take it as soon as you remember, tell your clinic, and note it — one late dose rarely changes the outcome, but your doctor should know
- Missed an antagonist dose: tell your clinic immediately; they may add an extra blood test to check for an LH surge
- Missed the trigger shot or took it late: call your clinic right away — this one matters most because retrieval is timed to it
- Missed a monitoring visit: reschedule as soon as possible; the doctor may postpone or advance your trigger date based on the new ultrasound
The safest rule: always call your clinic’s coordination line when anything deviates from the calendar. Clinics build in flexibility; silence is the only thing they cannot work with.
Patient Stories: Three Different IVF Calendars
The following patient stories are shared with consent. Names and identifying details have been changed to protect privacy.
Case 1 — Sarah, 34, antagonist protocol, fresh transfer (USA)
“My calendar was 31 days from CD1 to the pregnancy test. Stimulation started CD3 with Gonal-F 225 IU every evening — I set a phone alarm for 8 pm. The antagonist started on day 6, and I had five monitoring appointments. My trigger was hCG at 10 pm on day 11, retrieval at 8 am on day 13, and transfer on day 18. The hardest part wasn’t the injections — it was the monitoring every other day. My job let me work from the clinic’s parking lot between blood draws.”
Case 2 — Mei, 38, medicated FET (Thailand)
“After my fresh cycle failed, my FET calendar was actually simpler. Two weeks of estrogen patches, then progesterone injections starting 5 days before transfer. I flew to Bangkok on day 10 of the estrogen phase, had the transfer on a Friday, and flew home the following Sunday. Total clinic visits for the whole FET: four. The nurses printed my medication schedule in both English and Chinese, which made everything much easier. In a foreign country, my biggest fear was making a medication mistake — the bilingual schedule gave me real peace of mind.”
Case 3 — Priya, 41, long protocol with PGT-A (USA)
“My calendar started with Lupron injections two weeks before my period — that part surprised me because the stimulation hadn’t even started. Then 11 days of FSH with the antagonist, trigger, retrieval, and a day-5 biopsy for PGT-A. Because the embryos were frozen, my transfer came six weeks later in a separate FET cycle. If you’re doing genetic testing, expect the calendar to have a big gap in the middle — that gap was the hardest part of the whole process for me.”
FAQ
Q: How many days of injections are there in an IVF cycle?
Stimulation injections typically last 8 to 14 days, followed by a single trigger shot. After transfer, progesterone support continues for 2-10 weeks depending on the protocol and pregnancy outcome.
So the daily injection portion of the calendar is usually about two weeks.
Q: What happens if I get my period earlier or later than expected on the calendar?
Your clinic adjusts the calendar at the baseline appointment, usually on CD2-4. If your period comes early, you may simply start earlier; if it is delayed, the clinic may delay your start or use a programmed cycle with medication to control timing.
Never start stimulation without the clinic’s confirmation.
Q: How many clinic visits does an IVF cycle require?
A fresh IVF cycle typically requires 8-12 clinic visits total: baseline, 4-6 monitoring visits during stimulation, retrieval, transfer, and the pregnancy test. A medicated FET cycle usually requires about 3-5 visits.
Q: Is the IVF calendar the same for everyone?
No. The calendar depends on your protocol (antagonist, long, mini, natural), your age and ovarian reserve, whether you are doing a fresh or frozen transfer, and whether PGT-A is included.
Two patients at the same clinic rarely have identical calendars — one may finish in 2 weeks while the other takes 6.
Q: Can I work during an IVF cycle?
Most patients can. Stimulation injections are done at home, and monitoring visits are typically 30-60 minutes every 1-3 days.
Plan for retrieval day off (sedation), transfer day with light activity, and flexibility for monitoring appointments. Many patients schedule appointments early in the morning to minimize work disruption.
Q: What does “day 1 of cycle” mean for IVF?
It means the first day of full menstrual flow — not spotting, not the day before. Most clinics ask you to call them on CD1 so they can book your baseline appointment and confirm your start date.
Q: How long after the trigger shot is egg retrieval?
Egg retrieval happens 34-36 hours after an hCG trigger and about 36 hours after a Lupron trigger. The timing is precise, which is why the trigger shot must be taken at the exact time prescribed.
Your clinic calculates the exact retrieval time backwards from your trigger time and tells you both when you schedule the shot.
Q: Why does my doctor keep changing the calendar during stimulation?
Because your response determines everything. Monitoring visits every 1-3 days let the doctor see how follicles are growing and adjust the FSH dose, the antagonist start, and the trigger date.
A calendar is a starting plan, not a fixed contract — expect small changes.
How to Plan Around Your IVF Calendar
- Get the calendar in writing before your cycle starts, and confirm which day-numbering convention your clinic uses
- Set daily medication alarms — same time every day for injections
- Block monitoring visits in your work calendar early; clinics fill appointment slots fast
- Plan retrieval day off and arrange a driver (sedation means you cannot drive)
- For overseas treatment, request a written schedule before you travel so you can book flights around monitoring and the transfer date
- Ask your clinic for a translated medication schedule if English is not your first language — most international clinics provide one
Your IVF calendar is the backbone of your cycle. Understanding it before you start reduces anxiety, prevents missed doses, and helps you plan work and travel around the dates that matter.
Browse our hospital directory to compare clinics, or contact us if you need help planning treatment abroad.
This article was written by the ProIVF Medical Editorial Team, reviewed by the ProIVF Medical Advisory Board. The data cited in this article comes from the authoritative sources linked in the text, provided to give patients objective, accurate information.
This content is for educational purposes only and does not constitute medical advice. Always follow the specific instructions of your fertility clinic and physician. Last updated: August 26, 2026.
