1st pg - brown bleeding 2 weeks after BFP (approx 6 weeks). Blighted Ovum.
2nd pg - no bleeding at all. Missed m/c at 9 weeks
3rd pg - brown bleeding at 4.5, 5.5 & 6.5 weeks. Small dark red bleed at 31 weeks, small brown bleed at 32 weeks and moderate bright red bleed at 33 weeks. Luckily Bub was born healthy at 35 weeks and is doing fabulously.

So for me bleeding during pg has been both bad and not so bad. Good luck, I hope everything works out ok for you.