I actually had bleeding at my 13th week, because i'm rh neg. I have to go to emerg. With any bleeding for a shot of rogam. But the bleeding came with cramping so you can probably imagine how scary that was. They did an emerg. Ultrasound and when the doctor finally came to see me they said there was a black spot I guess , I really can't even recall what he called it and said it was kind of like a bruise on the placenta and caused me to bleed a bit , everything was perfect with the little one, it was actually the first time I saw the baby, but just being reassured made a huge difference.
Make sure you dont put strain on yourself, avoid having sex for a few days and just take good care of yourself and that beautiful baby inside of you!