I had a threatened miscarriage at nine weeks. I woke up one morning to find I was bleeding. It wasn't as heavy as a menstral flow, but was heavy enough that it had saturated my underwear and I didn't have any cramping. After three and a half hours in the ER and two ultrasounds, they told me it was a threatened miscarriage and that my placenta may have torn from the wall. They also found that I am Rh negative and so they gave me a Rhogam shot. I saw my OBGYN later that week and she said everything looked fine and the baby was moving around a lot. My OBGYN said that my cervix was low and it had actually started bleeding pretty good while she was trying to do a pap-smear. I have had some spotting now and then, but nothing as bad as at nine weeks. I just have to keep an eye on what I do. I have found that if I go over a bump in the road or a speed bump a little hard or fast that I will start spotting for a little, but it stops within an hour or so.I would just keep an eye on things and be careful. They told me to go back to the ER if I have bleeding like a menstral flow or if I have cramping with it. I will be 23 weeks tomorrow and everything is going well so far. If you are ever concerned, I would call your doctor right away.Hope this helps. Good luck!