IVF Due Date Calculator
Congratulations on your IVF pregnancy! Use this calculator to work out your estimated due date based on your embryo transfer date. Simply select the IVF tab, enter your transfer date, and choose whether you had a Day 3 or Day 5 (blastocyst) transfer.
How IVF Due Date Calculation Works
Calculating your due date after IVF is slightly different from a natural conception. Because the date of fertilisation is known precisely, the calculation is actually more accurate than using a last menstrual period date.
Day 5 (Blastocyst) Transfer
For a Day 5 blastocyst transfer, your due date is calculated by subtracting 19 days from your transfer date to find the equivalent last menstrual period (LMP) date, then adding 280 days (40 weeks). Alternatively, you can add 261 days (40 weeks minus 19 days) directly to your transfer date.
Day 3 Transfer
For a Day 3 embryo transfer, the calculation subtracts 17 days from the transfer date to establish the equivalent LMP date, then adds 280 days. This accounts for the two fewer days of embryo development compared to a Day 5 transfer.
Fresh vs Frozen Embryo Transfers
Fresh Embryo Transfer
In a fresh transfer cycle, the embryo is transferred to the uterus within the same cycle as egg retrieval. This typically occurs 3 to 5 days after egg collection. The due date calculation remains the same regardless of whether the transfer is fresh or frozen — what matters is the day of transfer and the embryo age (Day 3 or Day 5).
Frozen Embryo Transfer (FET)
In a frozen transfer cycle, previously frozen embryos are thawed and transferred in a subsequent menstrual cycle. This approach is becoming increasingly popular in Nigerian fertility clinics as it allows for better endometrial preparation. The due date calculation is identical — simply enter the date of the actual transfer and the embryo age at freezing.
Typical IVF Timeline
Ovarian stimulation with hormone injections and monitoring scans
Egg retrieval (collection) procedure and fertilisation in the laboratory
Day 3 embryo transfer (if applicable) — embryo has 6-8 cells
Blastocyst transfer (if applicable) — embryo has over 100 cells
Pregnancy blood test (beta-hCG) to confirm pregnancy
Early viability scan to confirm heartbeat and location of pregnancy
Fertility Clinics in Nigeria
Nigeria has a growing number of world-class fertility clinics offering IVF, ICSI, and other assisted reproductive technologies. Major cities with established fertility centres include:
Lagos
Lagos is home to the largest concentration of fertility clinics in Nigeria, with numerous centres offering comprehensive IVF services. Treatment costs typically range from ₦1,500,000 to ₦3,500,000 per cycle.
Abuja
The capital city has several reputable fertility centres providing IVF and related treatments. Many clinics in Abuja offer competitive pricing and modern facilities for fertility care.
Port Harcourt
Port Harcourt has established fertility clinics serving the South-South region. These centres provide IVF, IUI, and other assisted reproduction services to couples across the Niger Delta area.
Tips for IVF Mums in Nigeria
- Book your antenatal care early — ideally before 12 weeks. Your fertility specialist will guide you on when to transition to an obstetrician.
- Continue any prescribed medications (such as progesterone support) as directed by your fertility doctor. Do not stop without medical advice.
- Your first trimester scans are especially important after IVF. Attend all scheduled appointments for monitoring.
- Join a support group for IVF mums in Nigeria — connecting with others who understand your journey can be invaluable.
- Remember that once an IVF pregnancy is established, it is managed just like any other pregnancy. Your baby is developing normally!
Already know your due date? Explore our other free pregnancy tools:
Medical Disclaimer
This tool is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your healthcare provider with any questions about your pregnancy or health condition.