I had brown spotting with my first pregnancy and I miscarried so I suggest getting checked out red bleeding is not the only bleeding to worry about any bleeding is let your doctor decide if it is normal or not it's always better to be safe than sorry
I agree with the other comment. Red is usually more of an indication of miscarry, but if you need peace of mind, get checked out. Resting would be good, if you have that option.
I had brown discharge aswell at 5 weeks told not to worry unless it turns red. They scanned me and all was fine that God but did tell me rest till it stopped and it stopped after about 5 days. Get checked out for piece of mind and good luck