I just needed some help, I'm over month late on my period and have had 3 negative pregnancy tests, so I'm pretty sure I can't be pregnant. I came off my contraceptive pill about 2 months ago and my first period was normal, stupidly I've had unprotected sex after this but like I said I've already had 3 negative tests and I took them around a month after having unprotected sex, what could be wrong? Also I don't know if this means anything but I've been on and off having period cramp this whole time but just no blood, what could this be?