Okay so me and my bf have been sexually active and we didn't you a condom we used a contraceptive slips both times but even still he pulled out. My period was fours days late and when I wiped there was blood but it wouldn't flow. Then one morning it came on and I was happy buuuuut, it only lasted for like 3-4 days. I documented all this stuff and my app is telling me my fertility window is in a day and 7% chance of pregnancy. I haven't took a pregnancy test and I don't really feel to different but what do you think?