Welcome to HCM and thanks for consultation at best online healthcare portal. We as a dedicated team, work hard to assist patients from all over the globe.
I feel pride in helping you out today. If they gave
contraceptive pill in hospital well within 72 hours after rape, then its possible that it may have helped you preventing a conception. But, taking a pill after 72 hours, works nothing in preventing unwanted
pregnancy.
If your boyfriend didn't ejaculate inside (although it is very unreliable method of
contraception and has a very high failure rate) still the precum may contain some sperms in it depending the time since last ejaculation and many other factors. But getting pregnant from precum isn't that frequent as actual ejaculation.
Now coming to your symptoms, it may either be due to
hormonal changes in body that usually are seen in many women after sexual intercourse or before the start of menstrual periods.
To better understand your situation, we need a pregnancy test. Please go to the nearby Lab and ask for the pregnancy test (Sometimes not so promising but you may also do it at home with CLEARBLUE ADVANCED PREGNANCY TEST). When you get the results, please upload here for my review. I will happily assist you further in this case.
Hope it helps. Please ask me if you need further assistance. I will be happy to assist. My direct and fast acting link is: tinyurl.com/yyyyyyyy
Regards!