Can emergency contraceptive pills cause irregular periods?

Question

Hello, doctor

My last regular period date was two months ago. My normal cycle is 30 days. I took two to three Ovral-L pills, and I got my next period in the last week of the previous month. On the second day of my period, I got vaginal boils, which lasted for three weeks. I had unprotected sex in the following month, during which there was brownish-reddish blood spotting for only two to three minutes while having sex. I still have not gotten my period. I took a pregnancy test, but it was negative. What should be done?

Kindly help.

Answer 1

Hello,

Welcome to icliniq.com.

I read your query and can understand your concern.

Thanks for providing those details. Let us break this down carefully to understand what could be happening.

Summary of timeline:

LMP (last menstrual period): Mid-February (normal 30-day cycle).
Ovral-L pills taken: Second and third day of period (emergency contraception or hormonal disruption).
Next period: Last week of March (likely an early withdrawal bleed due to pills).
Sexual intercourse: Third week of April (unprotected, mid to late cycle).
Spotting during sex: Brownish-reddish spotting during intercourse only.
No period yet + negative pregnancy test

Possible explanations:

Hormonal imbalance from Ovral-L: Ovral-L contains high-dose hormones and can delay or disrupt ovulation and menstrual cycles for weeks after use, especially if taken irregularly. Your cycle may have been reset by the withdrawal bleed in March, so April's ovulation and period might have shifted.
Pregnancy: If you had sex on the third week of April, you were potentially in your fertile window, depending on when you ovulated. However, if your pregnancy test is negative now and done with the first morning urine, pregnancy is unlikely but not impossible. Consider repeating the test in three to five days or requesting a blood test (β-hCG (human chorionic gonadotropin)) for higher accuracy.
Infection or trauma: Spotting during sex might be due to cervical irritation, vaginal boils, history — could signal a low-level infection or inflammation or sexually transmitted infections (STIs). A pelvic exam or swab might be needed.
Stress or physical change: Bed rest, illness, or physical or emotional stress can also delay ovulation or periods.

What you should do next:

Repeat a pregnancy test in three to five days using first morning urine. If still negative and no period, consult a gynecologist for:

Pelvic ultrasound.
Hormonal profile (LH (leutinizing hormone), FSH (follicle-stimulating hormone), prolactin, TSH (thyroid-stimulating hormone)).
Infection screening, if needed.
Track your symptoms: Any pelvic pain, unusual discharge, or fever should be addressed quickly.

I hope this helps.

Thank you, and take care.

Regards.