Could be part of your mucos plug also. Doesn't always have to be bloody. Your body is getting ready for labor :)
Im about to be 37 weeks & i have the same thing happening but i think it means labor is close
Have you call your doctor about it.. when my water broke at first it was just a little bit of water but happen every time I stood up.. I out on a pad to check it.. I did not have any blood or anything. How far along are u.