Brown discharge after sex

Hi all, i’m 14 weeks going 15. After sexual intercourse noticed there was light brown discharge and the day after the discharge was darker brown with a bit sticky/gooey mucus-like thing too. Is it normal? Or shld I be worried? My next gynae visit is in 2 weeks. I googled and some said quite normal to have brown discharge after sex. 😅 Pls help!!