Pregnant & Spotting, Advice Please !

Haydie • My Little Baby Jr 💙July 21st
Okay so me and my SO had sex last night & when I woke up in the middle of the night to use the restroom I seen a tad bit of light pink blood after I wiped. Since then I have seen nothing more until now. Once again I wake up from my nap & when I wiped I then again seen a tad bit of light pink blood on the tissue. I think it had to be maybe just a bit darker & that their is more to come. This is my second pregnancy, i Am 7w pregnant now & had a miscarriage with my first pregnancy. I am afraid that maybe while having sex he might have been too rough ( I did have to tell him to calm down and not go so hard) and now maybe miscarrying. I am very excited about this pregnancy & would hate for anything to happen. Am I just over thinking things ? Please, any advice ?