Hi there, I have understood your concern. I will suggest you the best possible treatment options.
First of all do not panic.
If your HSG reports show patency of the
fallopian tube, then you need not worry.
If you have history of regular cycles and also there is history of unprotected sex act in the previous cycle, then please get morning's first sample of urine tested for
pregnancy. In case of doubt blood
beta HCG test and USG will be of help.
If pregnancy test is negative, then you can 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 same.
HSG test as such has no effect on the cessation of the menstrual cycle. Change in the menstrual cycle pattern can be due to some
hormonal changes.
I hope this answer helps you. Thanks.
Dr. Purushottam Neurgaonkar