Ok, so my last period was August 30th. I've had unprotected sex every weekend and we usually use the pull out method. There have been a few close calls and my SO also has a lot of precum. My cycle is usually at least 30 days, usually about 32 days. On the night of September 25th we had sex and I got really sharp cramps that only lasted about 20 minutes, maybe less. They didn't feel like normal period cramps. Then in the middle of the night I woke up feeling like I was really wet, i went to the bathroom and my underwear was soaked with a light watery bloody discharge. It was not like my period. Much thinner. I bled very lightly for that day and the next day it turned to a lighter spotting that was pinkish and brownish. That lasted for 3 days getting lighter and lighter and then stopped. I thought it was just an early period, but it wasn't like it at all. I'm wondering if it was possible slightly heavier implantation bleeding. It's been 5 days since that bleeding and I would have gotten my period today. I've been completely exhausted and having twinges in my lower abdomen/ovary area. Yesterday I felt really nauseous and sick to my stomach. I've been having headaches for a little over a week. And I just feel different. I have this gut feeling that I'm pregnant and I just can't shake it. I've taken multiple home pregnancy tests and all are negative. Is there a possibility that I'm pregnant? Should I keep testing? Or was that bleeding just a weird period?