Silly

I am 31 weeks with baby #3 and I feel ridiculous for asking this, bear with me.

This morning I used the bathroom to do #2. I grunted at the end and I felt a rush of warm liquid and I did have a lot of liquid to wipe up when I was done but because of my hydration level my pee is usually always clear or very light green. So I couldn’t tell anything. I put on a pad and clean undies just to be safe. I had sharp inner vaginal pains pretty soon after that, about 10 minutes or so. Within an hour I had actual contractions in my back. The severity of those passed but I was still uncomfortable. I have had severe vaginal pains that feel like it is right on my cervix and I have felt like I am about to start my period anytime now. Like that tired and heavy feeling down in my abdomen and pelvic area. I have been waiting for real contractions to start so I haven’t called my OB. Should i call her office tomorrow and see what they recommend? There was some discharge and liquid on the pad today when I changed it but it wasn’t soaking or anything. It has been 12 hours and baby is still kicking and other than the period feeling I feel fine.