I have never had blisters. I have had razor irritation while pregnant but it didn't show up like blisters. Best way to know is stop shaving and if it goes away within a day or two its probably irritation. Definitely still get it checked out though. I do know that pregnancy can make you have reactions to things you never did before. Did you try to stop shaving and see if it went away??
Yea I'm going to get that checked out they started comming when I was around 3 month.
It could be irritation from shaving, but I would let your doctor have a look asap just in case. Out of 6 full term pregnancies, I haven ever experienced that.