TMI: please help

My periods are normally 6 days long and I got my period on the 16th of August and I’m still bleeding it’s more like spotting I only see it when I wipe but after me and my bf have intercourse it’s bright read and even drops in the toilet sometimes. This is not normal for me. I’ve had my tubes tied back in March of this year and I’m on birth control for my migraines, anybody know what it could be, gonna call me doc tomorrow but just wanna know what you ladies think 💭 thank you 🙏🏽