I had some spotting in the first trimester for about 2-3 weeks, around weeks 4-6. I had 2 ultrasounds at the suggestion of my NP, to ensure that everything was OK. It turns out that everything looked fine. She told me that when I'm first pregnant, and missing my period, not all of my uterus realizes that it's pregnant yet so some if it is still trying to shed its lining. That made sense based on what I was feeling (normal menstrual cramping) but not otherwise. When she did the internal exam, everything was "closed up tight," both times. So if I'm so closed, where's the blood coming from? Now I'm worried that I'll have an incompetent cervix or something later. I'm planning to ask my doc about it next Friday at my 10 week appointment.