Took a test on cycle day 24, and my cycle are usually 26-28 days in length. I had unprotected sex on cycle day 5, but a lot of the semen dripped out. I see a super faint second line on my first response test, but it's too faint to show up on camera so is it even real? Only symptom I have is headaches in the morning, nothing else. What are the chances that I am pregnant?