My boyfriend and I had sexual intercourse last week. He mentioned he noticed some blood on the condom, and I've been spotting since light pinkish blood, I've noticed the spotting has faded but I am now experiencing some cramps. I've taken two pregnancy test and they were both negative. Could I've had some irritation or what could this be?

It is likely due to irritation. While pregnancy is possible since you had sex, you wouldn't see any signs of it right away. When are you due for your next period? Most often you would need to miss a period before you would get accurate results on a pregnancy test.

Agree I would guess irritation but it is too early to do a pregnancy test you have to wait till you miss a period first.