Cramping at 30 weeks. Advice please

Jaclyn

I am 30 weeks today. Since about 2:30 this afternoon i have had constant period cramps that are making me nauseous . Id say pain is a 5-6 out of 10. The ONLY relief i am getting is sitting on the toilet. I am drinking water, currently in a warm bath and just took tylenol. I do still feel him moving but i am now feeling some pressure in my lower abdomen.Any advice?? This is my second baby but with my first i had no problems at all.