I'm currently 35 weeks with baby number 3. At my 32 week appointment his heart rate was slightly high (170's, normal range being 120-160 according to my midwives). I had had a cookie a little before coming in so my midwife assumed he was having a sugar rush. But I had another appointment 2 days ago and while laying down babies heart rate was in the 200's. My midwife had me stand up to see if he was just "protesting" me laying down and it was still in the 180's. So I have an ultrasound today to double check everything (my last ultrasound was at 32 weeks as he had some fluid in his kidneys they were keeping an eye on and everything looked fine then). Anyone have anything like this happen and everything be okay? Anyone know what can cause this? Google says thyroid issues in the mother and substance/alcohol abuse while pregnant but neither of these pertain to me.