TMI post, Almost 15 Weeks

So yesterday evening I had sex with my husband, but during a position change I noticed I was dripping blood but I didn’t have any cramping (light cramping tho) until after I started freaking out, I immediately stopped dripping blood and it subsided to just light brown/pink bleeding to spotting. I decided to just lay down and it stopped for a little, but when I kept waking up to use the bathroom I kept wiping away brown. Now I just feel like my insides are sore. I have an actual doctors appointment on the 28th so hopefully I can get answers.

Idk if it could just be a normal thing after sex for someone who’s almost 15 weeks or not.

But does anyone have a thought on what it is and what I should think about during this time?