Shinee - Can't help you on the heart burn!!!
But - In the (.)(.)'s section I can. I bought a new bra when i was 7 weeks pregnant coz my bb's seemed to have jumped a size - I am still wearing that bra at the moment - maybe you should get one and then you might be able to wear it for the next 10 or 12 weeks - i have got good use out of this one - i can't believe how much my bb's have grown!!!!