It can be normal but it can also point out a complication I had brown spotting with my first pregnancy and I miscarried it's always better to get checked out by a doctor better to be safe than sorry
I had bleeding in my first trimester. Dr's didn't know why but I am now 7 months and everything's good.
As long as there's no clotting or pain everything should be fine but call OBGYN if you a worried or it continues for a long period
It can be .. Did u just have sex ... Was it brown or red pink