Brown discharge first trimester

Hi ladies, curious if any of y’all have had multiple episodes of brown discharge during the first trimester and everything turn out okay? I’m now on episode 5 of brown discharge (each episode lasts less than a day and I go multiple days in between). I’m not cramping and it’s never been heavy or red. I’ve gotten an u/s to confirm intrauterine pregnancy and got to hear a heartbeat yesterday. So I’m pretty convinced that it’s okay, but just weirds me out? Curious if anyone has had this and what it ended up being? Thank you ❤️