i have low blood pressure too.

when about 16wks prg i was in a line at the bank when i fainted, talk about a great way to queue jump lol, my ob said everything was okay i just had to sit and rest and put my legs up higher than my heart when i felt a bit faint.

with the other 2 pregancies my blood pressure has been low but i have gotton to know when to slow down and rest up a bit and to be careful when standing up quickly.