Low or High BP?

Low BP in the first trimester and slightly above normal BP during the third trimester is not a cause of concern according to my gynaec. During the first trimester, I had a blood pressure of 110-70 consistently. With a previous history of very low BP and falling giddy at times I was worried. But she assured me it was normal. In the third trimester now, my BP is hovering around 130-80 which is fine too.