My cycle, since I miscarried in June, has been exactly 25 days,,,except last month. It came three days late making it a regular 28 day cycle, I am trying to conceive so...at the time was hoping that it meant I was pregnant. Anyways, I had unprotected sex twice on day 9 of my cycle, I woke up on day 19 of my cycle, and when i wiped I had just a very tiny bit (maybe a few drops) of red blood when I wiped. I checked myself to see if I had maybe gotten a scratch or cut down there that it may have come from but I did not find any. I wiped clear the rest of the day. Could this have been implantation bleeding? I am not sure if it could really be that light but I have never had any kind of spotting before a period in my life and my period shouldn't be due for maybe another week. Oh and I also had some weird cramping the day before that almost made me think that my period were about to start!