Hey all, So last month my cycle was 9 days late and me and dh had unprotected sex 3 days before I was originally due on, we are using natural forms of contraception and we just don't do the deed around my fertile window, well I took multiple test and kept getting BFN and I wasn't pregnant because I came on 9 days late. Well fast forward to now to the next month and I'm 8 days late again. I haven't yet taken a test, dh has been away with work this month so we haven't really had sex this month except right at the beginning of the month after my period. My question is could it be possible from last month even though I had a period? I just don't know what's going on with my body I've always been regular with a 31 day cycle and I'm scared to test incase it's negative again. Does anyone have any stories?