Periods are very irregular and I'm not sure when or if I did ovulate. But I had spotting one time Mon night (we had sex 10 9 and 8 days before that) so if COULD of been implantation bleeding. I was having a few symptoms and I just went to the restroom and had vvvl spotting again (Thurs night) . I usually don't spot. I had a bfn today. Is pregnancy still possible or am I out?