I was trying to conceive and underwent a follicular study. After ovulation, my doctor prescribed Susten 400 (vaginal) for 15 days. My last LMP was 1st August. I have neither got my period nor is my pregnancy test positive. Can you suggest the possible cause? Does Susten 400 delay periods, or could I still be pregnant?

Answered by 1 Apollo Doctors

Dr Ezhilarasan Ml

General Practitioner

MBBS
6+ Yrs

Consult Now

Susten 400 (progesterone) can delay your period even if you are not pregnant because it maintains the uterine lining. If your period has not come after stopping Susten and your pregnancy test is negative, it is likely due to the medication. To confirm pregnancy accurately, you can book a Serum Beta hCG test now. If negative, your doctor may advise medication to induce your period and plan your next cycle. consult OBGYN FOR ADVICE

Dr. Ezhilarasan Suggests...

Take a Beta HCG Test Test

Book Beta HCG Test Test

Answered 09/09/2025

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