IVF Timeline: Day-by-Day Calendar
Starting your IVF journey is one of the biggest decisions you’ll make. And if there’s one thing most couples wish they had before beginning, it’s a clear picture of exactly what happens, when. The process involves multiple stages spread across four to six weeks, and knowing what to expect on each day can genuinely reduce anxiety and help you plan your life around treatment.
This guide gives you a complete, day-by-day IVF timeline — from the pre-cycle preparation phase right through to your pregnancy test. At FertilTree, led by one of India’s foremost fertility specialists, Dr. Firuza Parikh, every cycle is carefully personalised. But this calendar gives you the general framework that applies to most patients.
Whether you’re comparing IVF vs IUI or simply want to understand the IVF process, risks, and success rates before your first appointment, this is the article for you.
Quick Snapshot: IVF Timeline at a Glance
Phase | Days | What Happens |
Pre-Cycle Prep | Days –21 to –1 | Baseline tests, suppression medications, lifestyle preparation |
Ovarian Stimulation | Days 1 – 10/12 | Daily FSH/LH injections, follicle monitoring scans every 2-3 days |
Trigger Shot | Day 10 – 12 | hCG or GnRH agonist trigger, precisely 36 hours before retrieval |
Egg Retrieval | Day 12 – 14 | Minor procedure under sedation; 15-30 minutes, same-day discharge |
Fertilisation | Day 0 (Lab) | Eggs fertilised with sperm via standard IVF or ICSI |
Embryo Growth | Days 1 – 5 (Lab) | Embryos graded at Day 3 (8-cell) and Day 5 (blastocyst) |
Embryo Transfer | Day 3 or Day 5 | Painless procedure; 1-2 embryos placed in the uterus |
Two-Week Wait | Days 1 – 14 (post-transfer) | Progesterone support; avoid heavy lifting; emotional phase |
Pregnancy Test | Day 14 – 16 | Beta hCG blood test confirms implantation |
Phase 1: Pre-Cycle Preparation (Days –21 to –1)
Before a single injection is given, your fertility specialist will run a thorough baseline assessment. This typically includes blood tests (AMH, FSH, LH, estradiol), a transvaginal ultrasound to count your antral follicles, and a semen analysis for your partner.
Depending on your protocol, you may start oral contraceptive pills or a GnRH agonist (like Lupron) 2–3 weeks before stimulation begins. This synchronises your cycle and suppresses premature ovulation. Now is also the time to discuss the IVF treatment cost in Mumbai with your care team and understand what’s included in your cycle.
What to Do During This Phase
- Start prenatal vitamins (folic acid, vitamin D)
- Avoid alcohol, smoking, and excessive caffeine
- Keep a stable sleep schedule and manage stress
- Attend your baseline scan and blood work appointment
Phase 2: Ovarian Stimulation (Days 1–12)
Day 1 is the first day of your period — this marks the official start of your stimulation phase. Your doctor will prescribe gonadotropin injections (FSH and LH) to encourage your ovaries to develop multiple follicles simultaneously.
Most patients are curious about how many injections are needed during IVF. On average, you’ll have 10–14 daily injections over this phase. Your clinic will also add a GnRH antagonist from around Day 5–6 to prevent premature ovulation.
Monitoring Scans: Days 5, 7, 9, and 11
- You’ll return to the clinic every 2–3 days for transvaginal ultrasounds and blood tests. These scans measure follicle size (the goal is reaching 18–20 mm) and estrogen levels. The number and size of your follicles determine when you’re ready to trigger.
Phase 3: The Trigger Shot (Day 10–12)
Once at least 2–3 follicles reach the target size, you’ll receive a trigger shot — usually hCG (human chorionic gonadotropin) or a GnRH agonist. This is the most time-sensitive step in the entire IVF calendar.
The trigger must be administered exactly 36 hours before egg retrieval. Your clinic will give you a precise time — follow it to the minute. Timing this correctly is critical for retrieving mature eggs.
Phase 4: Egg Retrieval Day (Day 12–14)
Egg retrieval is a minor surgical procedure performed under light sedation. A thin needle is guided through the vaginal wall using ultrasound to aspirate the follicular fluid containing eggs. Most patients feel mild cramping and are ready to go home within 2–3 hours.
On the same day, your partner provides a sperm sample (or frozen donor sperm is thawed). In the lab, each mature egg is assessed before fertilisation.
Phase 5: Fertilisation and Embryo Development (Days 1–5 After Retrieval)
The morning after retrieval (Day 1), the embryology team checks how many eggs were fertilised normally. Eggs are either inseminated conventionally or fertilised via ICSI (Intracytoplasmic Sperm Injection) — where a single sperm is injected directly into the egg. ICSI is recommended when sperm quality is a concern.
By Day 3, healthy embryos have reached the 6–8 cell stage. By Day 5, the best embryos develop into blastocysts — a more advanced stage associated with higher implantation rates. Understanding embryo grading on Day 3 and Day 5 helps you understand your embryo’s quality and chances of success.
Phase 6: Embryo Transfer Day (Day 3 or Day 5)
Embryo transfer is the moment everything has been building towards. It’s a quick, painless procedure — similar to a smear test — where a thin catheter places one or two embryos into your uterus under ultrasound guidance. No anaesthesia is needed.
Want to understand the procedure in more detail? Read our guide on what is an embryo transfer to know exactly what to expect before, during, and immediately after the procedure.
After the transfer, you’ll continue progesterone support (pessaries or injections). There’s no need to stay lying down for hours — gentle movement is fine.
Day 3 Transfer vs. Day 5 (Blastocyst) Transfer
- Day 5 blastocyst transfers generally have higher success rates because the embryo has proven its viability. Day 3 transfers are used when fewer embryos are available or when lab conditions favour earlier transfer. Your embryologist and doctor will make this call based on your individual situation.
Phase 7: The Two-Week Wait (Days 1–14 Post-Transfer)
The two-week wait (TWW) is often described as the hardest part of IVF. Your body is supported with progesterone while the embryo (hopefully) implants into the uterine lining. Symptoms during this phase — bloating, mild cramps, breast tenderness — can be either side effects of medication or early pregnancy signs.
Wondering what to expect? Our detailed article on dos and don’ts after embryo transfer covers what you should and shouldn’t do to maximise your chances. You can also read about the most common signs of successful embryo transfer to understand what your body might be telling you.
Phase 8: Pregnancy Test — Beta hCG (Day 14–16 Post-Transfer)
On the designated test day, a blood test measures your beta hCG levels. This is more accurate than a home pregnancy test. A positive result doesn’t yet mean a confirmed pregnancy — levels need to rise appropriately over the following days.
Expert Behind Your Care: Dr. Firuza Parikh, Director — FertilTree
This article is reviewed and aligned with protocols followed by Dr. Firuza Parikh, Director of Jaslok-FertilTree International Fertility Centre at Jaslok Hospital, Mumbai — one of India’s most decorated fertility specialists.
Dr. Parikh completed her undergraduate and postgraduate medical education at KEM Hospital, Seth G. S. Medical College, and Nowrosjee Wadia Maternity Hospital in Mumbai, earning multiple gold medals. She subsequently trained in IVF at leading centres in the UK and USA.
Under her leadership, FertilTree has achieved:
- 20,000+ successful deliveries across 34+ years of practice
- 1,500+ Preimplantation Genetic Testing (PGT) cycles performed
- IVF pregnancy success rates of 38–42% per cycle (47–51% per couple)
- 40+ prestigious awards — including being rated the No. 1 IVF Centre in Mumbai by the Times of India and Economic Times in multiple national surveys
Her pioneering work includes developing India’s first PGT techniques for Robertsonian translocation, the first BRCA1 mutation-free twins via PGT-M, and the innovative Cumulus-Aided Transfer (CAT) procedure. She has been named Woman of the Year by Hindustan Times and is featured among India’s 50 Most Powerful Women by Femina.
Frequently Asked Questions (FAQs)
Q1: How long does one full IVF cycle take?
A complete IVF cycle, from pre-cycle preparation to pregnancy test, typically takes 4 to 6 weeks. The stimulation phase alone is 10–14 days, followed by egg retrieval, a short lab phase, embryo transfer, and the two-week wait.
Q2: Can I work during an IVF cycle?
Yes, most people work normally during stimulation. You may need half-days for monitoring scans. Around egg retrieval and transfer, plan for 1–2 days of rest. The two-week wait requires no special restrictions; moderate, normal activity is encouraged.
Q3: What happens if my embryos don't make it to Day 5?
Not every embryo reaches blastocyst stage — this is normal. Your embryologist may recommend a Day 3 transfer instead, which is equally valid. Embryo attrition in the lab is part of the natural selection process.
Q4: Is the egg retrieval procedure painful?
Egg retrieval is performed under sedation so that you won’t feel pain during the procedure. Mild cramping and bloating for 24–48 hours afterwards are common. Most patients are comfortable and can resume light activities the next day.
Q5: When should I take a pregnancy test after embryo transfer?
Your clinic will schedule a blood beta hCG test exactly 14–16 days after transfer. Avoid home pregnancy tests before this — they can give misleading results due to the hCG in your trigger shot still being present in your system.
Q6: What is the IVF success rate at FertilTree?
FertilTree reports pregnancy success rates of 38–42% per IVF cycle and 47–51% per couple, above the national average. Success depends on age, diagnosis, embryo quality, and uterine health. Book a consultation to understand your personal prognosis.
Q7: Can I freeze unused embryos?
Yes. Good-quality embryos that aren’t transferred are frozen (vitrified) for future use. Frozen embryo transfer (FET) cycles are simpler, shorter, and less expensive than a full fresh cycle. FertilTree uses advanced vitrification technology for optimum embryo survival.
