36+3 and a lot of pain

Katie
So I'm 36+3 and started Friday contractions at 15 mins then Saturday they started 10 mins apart. Haveing lots of pressure when I stand. Have had a bad headache since yesterday. No plug yet. Should call the dr or are these just Braxton's. I have my weekly apt tomorrow Monday at 2 .. help I just don't want them to tell me I'm just dehydrated. Cuz I'm not that's what they always seem to tell me ..