Hi, my boyfriend and I slepted together 2 weeks ago and he used a condom. The condom did not break or anything like that. So we thought we were fine. Well now I am having symptoms... like also having to go pee, feeling tired all of a sudden, nausea. Also I am late on my period which is very rare for me. I took a pregnancy test four times all came out negative.. So I am wondering could I be pregnant..