hCG Trigger Shot in IVF: Timing, Purpose, and Side Effects

During an IVF cycle, the ovarian stimulation phase focuses on growing multiple healthy follicles. However, once the follicles reach their target size, the final step before egg retrieval requires precise hormonal signaling. The hCG trigger shot in IVF acts as this signal, initiating the final maturation of the eggs and separating them from the follicle wall so they can be retrieved.

This comprehensive guide details the role of human Chorionic Gonadotropin (hCG) triggers, explains the strict timing required, and lists the common side effects.

Trigger Timing and Safety

Trigger shot is given precisely 36 hours before collection. High-risk patients utilize agonist triggers to prevent hyperstimulation (read details in our OHSS guide). Track symptoms (read details in our successful implantation guide and check our Beta hCG test guide).

Optimize Your Egg Retrieval Success
Strict timing during the trigger phase is essential to securing mature eggs. If you want to discuss your stimulation calendar or trigger options, you can schedule a clinical consultation at Pravi Global IVF.

Trigger Shot Frequently Asked Questions (FAQ)

1. What happens if I miss my trigger shot time?
Contact your clinic immediately so the retrieval schedule can be dynamically updated.

2. Can I take a pregnancy test after the trigger shot?
hCG trigger shot will cause a false positive result on a home test for 10 to 14 days.

3. Is the trigger shot given subcutaneously or intramuscularly?
It depends on the trigger brand prescribed; both injection methods are commonly used.

4. How many eggs are matured by the trigger shot?
All follicles measuring 14mm or larger are successfully matured by the injection.

5. Can I exercise after taking the trigger shot?
No, rest is advised to avoid discomfort and protect the enlarged ovaries.

Conclusion

Administering the **hCG trigger shot in IVF** with strict timing ensures mature egg retrieval. Our team provides complete coordination support. Contact Pravi Global IVF today to schedule your evaluation.