Anyone ever have brown spotting kinda dark then bleeding and cramping during early pregnancy? I cramp at night in my lower left side.. It's horrible like I can't move until I get a hot bath and towel and I'm fine. I'm really worried it's been going on three days now... It's brown to pink to red then back to brown all day long. Doctor said it could be normal.. They did a ultrasound and no sac and no baby yet at 5w5d