Bleeding after intercourse

Sooo my spouse and I had intercourse and it was really rough than what we normally do. I am 7 weeks pregnant and I started spotting right after. Now two days later I am spotting brown but only when I wipe. I called my doctor and they said it’s normal and everything is okay. My last baby was a miscarriage and I guess I’m just scared. I saw baby last week and the heartbeat was strong and good. So idk why I keep worrying.