On May 3rd, I had unprotected sex, he pulled out & finished on my back but it ran down my butt crack & im not sure how far down it got before I caught it. My period was due about a week ago, I took a test a week ago & it came back negative, I took another yesterday & it came back negative. Should I be worried still? Was the one I took yesterday still too soon?? I thought you could take it 10-14 days after conception & it should be accurate considering i took the second one after my period was due. Help help help!!!