Pregnant.??

So maybe I’m paranoid or something but a couple of days ago I thought I started my period but it’s usually really heavy and this time it was light pink. Like really really light I don’t even know if it was my period because of how light it was. I’m supposed to start my period tomorrow but I don’t feel any symptoms like cramps or nausea like usually. I have a IUD and it’s been working for the 7 months ive had it for. My bf does cum in me everyday so idk what’s up with that light bleeding. Do y’all think I’m being paranoid 😭 also he left out of town so when he came back it was September 7th so it’s only been like a week since we’ve been having sex everyday since that day so idk.

I took a test 2 days ago n it was negative