So the last time my boyfriend now ex was at my house we had been having some really bad issues with our relationship and he said he knew I was going to leave him which sadly i did but we did have unprotected sex before I broke up with him and he left, i know stupid, however this was almost 3 weeks ago and he told me he came inside of me as a way to get me not to leave (by having his child) and of course this freaked me out and I took a test, it said not pregnant but I still have a week till my period is supposed to come should I have waited till after my period was supposed to come to take the test?