6 days later I saw a tiny tiny tiny bit of brownish/yellow discharge which was dry so I put a tampon in. When I got home from school I took it out and panicked because there was nothing on it but only a very very small amount of brown discharge and discharge. The next day there was next to no bleeding then the day after that it got heavy. My period only lasted 5 days with proper blessing but 7 days including when the brown discharge happened. This period was pretty heavy 

Then the next period was lighter (still considered heavy by some people)and only lasted 5 days compared to my usual 7 days. The next period lasted 8 days but was a tiny bit heavier. Then the most recent period lasted 8 days again but wasn't as heavy. 

I have noticed dizziness but that has stopped  now, I think my nipples may have gotten a bit darker but I don't know how dark they were before, and Tmi I have had a lot of red bogies (small nose bleeds) 

I was just wondering if there was any chance that went I wiped my mouth with me sleeve that some cum got on it and when I went to the loo sperm might have touched my vagina. 

Please comment as I am freaking out and have been for 15 weeks, and I can't get a pregnancy test 

Thank you