I did have spotting through my whole first trimester and killer cramps!x
I had spotting like you, pink and brown, throughout first trimester and baby turned out ok! Was told by my doctor that as long as it’s not bright red and huge amount then should be fine. I’d double check with your LMC just for a peace of mind though
I had spotting during week 5-6. Now 37 weeks!!
I would go early pregnancy unit for advice if you haven’t already x