I'm 17 weeks and had a prenatal check up and my blood pressure was 138/64. I had just arrived and basically immediately went to be weighed and blood pressure taken. My OB then checked it with the hand held pump a few minutes later and it was 135/70. She said they would keep and eye on it and they only get concerned if it reaches 140. The weird thing is I've been periodically checking it at home and I'm always under 120/70. I've read up on white coat syndrome, but apparently having even that in pregnancy causes risks to getting pre-eclampsia and other things. Has anyone experienced this? It's obviously making me more stressed when I need to try and stay relaxed for blood pressure! Any tips on relaxation techniques at the doctor's office?