Yes I've had it low this whole pregnancy. When i start to feel dizzy or lightheaded I drink lots of water, eat a snack with sodium and if you lay on your left side that helps. Also try not to get to to fast or move to fast.
I've been told that during pregnancy your blood pressure is normally lower than usual. Mine was 109/60 and the Dr said it was perfect for pregnancy.
Mine still around 100/60 so far, but I also drink a lot of water and have a fairly high sodium diet to begin with due to having the issue before pregnancy. Most of what I've heard always revolved around high blood pressure. Thanks--it's nice to know I'm not the only one.