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Blastocyst Transfer Explained: Pregnancy Chances & Real Results

Dr. Pujil Gulati, IVF Specialist with over 13 years of experience in Assisted Reproductive Techniques BabyBloom IVF Gurgaon

May 15, 2025

🌱 What is Blastocyst Transfer?

(Simple Words: Baby Ready Embryo Transfer) Blastocyst transfer is a step in IVF (In-Vitro Fertilization). In this, a healthy 5-day-old embryo (called a blastocyst) is placed inside the woman’s uterus to help her get pregnant. This embryo is strong and has more chances of growing into a baby.

🧬 What is a Blastocyst?

(Simple Words: An Embryo Ready to Become a Baby)

A blastocyst is an embryo that is 5 to 6 days old. It has many cells inside and looks like a small ball. It has two parts:

Inner Cell Mass (ICM): Becomes the baby.
Trophoblast: Becomes the placenta.

Doctors grow the embryo in a lab for 5 days. If it grows well, it is called a blastocyst. Then they transfer it to the uterus.

🤰 Why Do Doctors Use Blastocyst Transfer?

Blastocyst transfer is better than 3-day embryo transfer. Here’s why:

✅ Better Embryo Quality

Only strong embryos become blastocysts. So, they are healthier and more likely to succeed.

✅ Higher Pregnancy Rate

Because blastocysts are strong, more women get pregnant with this method.

✅ Less Chance of Twins or Triplets

Doctors can transfer only one strong embryo instead of two. This lowers the chance of multiple babies.

📊 Pregnancy Success Rate After Blastocyst Transfer

Here is what studies and clinics say:

Age Group	Pregnancy Rate (Per Cycle)
Under 35	60% to 70%
35–37	50% to 60%
38–40	40% to 50%
Over 40	30% or less

👉 These numbers may vary. But blastocyst transfer gives higher chances than 3-day embryo transfer.

🕰️ When is Blastocyst Transfer Done?

After 5 days of egg collection in IVF.
When the embryo becomes a blastocyst.
Usually done on Day 5 or Day 6.

Doctors check:
✔ Growth of the embryo
✔ Quality of the cells
✔ Health of the woman’s uterus

Then they go ahead with the transfer.

🧪 Steps in Blastocyst Transfer

(Simple Words: How It Happens)

Here’s what happens step-by-step:

Egg Collection: Eggs are taken from the woman’s ovaries.
Fertilization: Eggs are mixed with sperm in a lab.
Embryo Growth: Embryos are watched for 5 days.
Blastocyst Stage: Healthy ones become blastocysts.
Transfer: One or two blastocysts are put into the uterus.
Pregnancy Test: After 10–14 days, a test is done to check pregnancy.

🔍 Keyword Tip: IVF steps, how blastocyst transfer works, IVF pregnancy process

⚠️ Risks and Side Effects

Blastocyst transfer is safe, but it may have small risks:

Cramping or spotting
Failed implantation
Miscarriage (rare)
Emotional stress if IVF fails

👉 But overall, it is one of the best IVF methods today.

👩‍⚕️ Who Can Try Blastocyst Transfer?

It is best for:

Women under 40
Women with good egg quality
Couples with failed IVF before
Couples who want single embryo transfer

Even women with low AMH or PCOS may benefit from it. Always ask your IVF doctor.

💡 Tips to Increase Pregnancy Chances After Blastocyst Transfer

🟢 Eat healthy (fruits, vegetables, protein)
🟢 Rest well (but no full bed rest)
🟢 Stay stress-free (do yoga or light walks)
🟢 Take all medicines on time
🟢 Don’t lift heavy things
🟢 Avoid smoking, alcohol, caffeine

❓ FAQs About Blastocyst Transfer

Q1: Is blastocyst transfer painful?

No, it feels like a regular check-up. No pain or anesthesia is needed.

Q2: How many embryos are transferred?

Usually 1 or 2 blastocysts are transferred for safety and best results.

Q3: Can I walk after blastocyst transfer?

Yes, light walking is okay, but avoid hard work or jumping.

Q4: What is the cost of blastocyst transfer in India?

It is around ₹1.2 to ₹2 lakhs, depending on the clinic and location.

Q5: What are the chances of success in the first try?

Many women get pregnant in the first IVF cycle with blastocyst transfer.

📘 Conclusion

Blastocyst transfer gives better pregnancy chances in IVF. It uses strong embryos, gives higher success rates, and lowers the chance of twins. Many couples are becoming parents through this method.

If you’re trying IVF, talk to your doctor about blastocyst transfer. It might be the step that brings your baby home.

💖 OR If you need any information related to IVF, contact our Babybloom IVF Centre or call us at 9266046700 to clear your doubt🌸