Misscarage

I'm going to go see a doctor tomorrow. Er if the pain gets worse. But my period is 7 days early which never happens I am ALWAYS late. I'm also having really strong contraction like cramps. I have two kids and I already have had two misscarages this year alone. but all were right after when I am supposed to have my monthly. And were not this painful. I was reading some women who went threw this and were pregnant and had the baby. Has anyone experienced this before?