Literally so scared....bleeding occur to any other mammas?

Hilary • Engaged 💍 11-3-18 Ricardo Jr “RJ” 7-4-19 👼🏼

I am 7 weeks 6 days pregnant, today me and my fiancé had sex and about an hour later I went to go to the bathroom and there was blood in the toilet. It was in my opinion Semen with blood in it. I wiped and it was very light pink. I’m freaking out and unsure of what to do. Any advice? Anyone else have this happen?????