Hi there, I have understood your concern. I will suggest you the best possible treatment options.
1. First of all do not panic.
2. With the history of irregular cycles, and protected sex activity, as such chances of getting pregnant are almost nil.
3. Still to clear the dilemma about
pregnancy, I will suggest you to wait at least for 15 to 20 days after the last sexual activity.
You can confirm or rule out the pregnancy with -
A. Presence of
HCG in urine pregnancy test or
blood test.
B. USG.
4. Even if you are pregnant, you can opt for for termination of the pregnancy with medicines safely till 9 weeks of pregnancy under medical supervision.
If you are not pregnant then youcan simply wait for the onset of periods or induce the periods with
progesterone tablets . Your treating doctor can guide you further about the doses and withdrawal bleeding of the progesterone tablets.
5. A detailed USG will be of help to know the reason for your irregular cycles, like
PCOS.
I hope this answer helps you.
Thanks.
Dr. Purushottam Neurgaonkar.