im 35 weeks and been having so much pressure down there. now I woke up feeling so nauseous., and was having pain in my…

im 35 weeks and been having so much pressure down there. now I woke up feeling so nauseous., and was having pain in my back and everywhere earlier! what is this!? labor!? I'm nervous about this happening and me not knowing. its my 3rd baby but with my first I didnt have any contractions or anything my water just broke and I went in. and my second i was induced. so im scared im going to miss something and it means I'm in labor!