Cervix problems!!

Dawn
Ok ladies i got a question... im 19 weeks pregnant and this will be my second child... well today i wiped and i wiped brown with pea size clots and it also accompanied cramps... well i went to the doctor and she said my cervix is open about the size of the tip of a finger... well they sent me to the er and the er really didn't give me any answers... so my question is has this happened to anyone of yall???