I have pretty low blood pressure as well. Not quite as low as yours, but I have never had any major issues and this is my third baby. Although today while taking a shower I got super flushed and felt dizzy and could barely breathe. It was strange. That hasn't happened in a while this pregnancy. Just drinks lots of water and take it easy!
I also have low blood pressure and it was never a problem in my first pregnancy. As mentioned above, adequate fluid intake is important as is an adequate intake of salt, always helps in keeping your bp up. Dizziness is a common symptom in pregnancy, but it may affect us girls a bit more than others. Good luck!
I also have low blood pressure.. Mine is higher than what yours was today but generally like 95/64.... My doctor was concerned about it at first but i havent been an issues.. It says in everything i read, its not a concern like hBP for the baby but you do risk fainting, fallling,etc... there is also a risk of blood pooling in your legs if you sit too long etc.. I havent had any of thesse issues yet though...
I think my doctor is less concerned about it now because my blood pressure is consistently in the same range and I havent had any issues to date
My doctor just tells me to drink plenty of water...
I have always had low blood pressure, some days lower than others. Honestly it has never been an issue in pregnancy. It can be low enough sometimes that I get light headed or dizzy so have to take it easy but it hasn't ever concenred my Dr. It was actually a bit lower with my first than with this one. My Dr was never concerned, when I was in L&D they watched it closely but that was about it. Good luck and see what your cardiologist says.