I would get checked out as well. Don't want to scare you but when I had a miscarriage it started with brown blood, just light spotting for a couple of days.
Rather know ASAP.
Hope all will be ok for you. X
I would get checked out especially since you've had a miscarriage before implantation bleeding happens 4 to 7 days before your missed period so if you've already had a positive pregnancy test then that's not the reason why you are bleeding I had brown spotting with my first pregnancy and I miscarried so not all the time is brown spotting fine and just old blood I would get checked out let your doctor decide if it is normal or not it's always better to be safe than sorry
In the beginning of my pregnancy I had brown spotting. I believe it was implantation bleeding. I also had cramping. Brown blood is usually a sign of old blood so I think you're OK :) just take it easy and hopefully you have a doctors appointment soon and see all is well :)