I have irregular periods, usually with a cycle of 40 days. My last period was on July 31st. I got married on August 14th, and our first intercourse was on August 17th. I experienced red spotting on September 1st, and since then, there has been no bleeding. I took two urine pregnancy tests, both of which were negative. My doctor prescribed Regestrone for 5 days (3 tablets per day). What are the chances of pregnancy, as we have started trying for children and are not using any contraceptives?

Dr Dhankecha Dineshbhai

General Practitioner

• MBBS
• 6+ Yrs

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Since you have a 40 day cycle and had your last period on July 31st with first intercourse on August 17th, the chance of pregnancy depends on when you ovulated. Spotting on September 1st could be implantation bleeding, but negative UPTs make pregnancy less likely. Regestrone is given to induce a period, and if you do not get your period within a week after stopping it, repeat a urine pregnancy test. If irregular cycles continue while trying for pregnancy, a thyroid profile and pelvic scan may help assess further.

Answered 08/09/2025