Yes! I get those stabbing pains all the time. I asked my doctor and she said it's perfectly normal. Also, my mom had these all through her pregnancies and a lot of my friends did too.
It could be baby pushing on your cervix. Also, I have heard round ligament pain causes that. Lastly, I have heard people say that it is the baby dropping lower into your pelvis. With any of these, I know it's not dangerous! It just hurts!!