Are u seeing clots? If so, u should go to the hospital and get an ultrasound asap!
Just what tarajanes said!!! If theres alot of pain, go to the dr right away. Or alot of blood.
Could be a number of things.How far into your pregnancy are you.some women experience slight bleeding through pregnancy,not always a concern.Are you having any pain.I would give your care giver a call.see what they say.