please advice!

Trish
I am 40+1 today. Went to my doc for membrane sweep but she couldn't do it as i was 1cm 50% effaced. However i have been having uncomfortable cramping in the stomach and feels like i need to pass gas and backpain after the cervix check. Is this normal or am i in labor? I am a ftm so have little knowledge of it all. Please can someone share similar experiences or answer my question?