I never had it until I became pregnant. I use tums, if that isn't strong enough your doctor should have given you a list of approved medicines to take while pregnant. Have you tried taking anything on that list? You can always call and ask to speak with a nurse to ask about it.
Oh god I cant take it for another day never mind another 30 weeks :(
I just had another post about this it is so bad but I am almost 37 weeks and it has been sticking to my side the whole pregnancy