Moms with POTs

I have had POTs for a year now and am only taking propranolol. Currently I’m 15 weeks pregnant and my biggest issue is air hunger and high resting heart rate. When you were pregnant was your resting heart rate in the 90s-100 or lower? It seems like each month my resting heart rate is increasing and I’m nervous for when giving birth what my hearts going to do. What was your heart rate when going thru labor?

Any advice/comment is much appreciated!!