Breast development and belly for baby

I am 9 weeks pregnant. 20 yo. I might add that I'm new to pregnancy, my first time being pregnant. O my... My breasts have already gone up a cup size. My bust has gone from a 32a to a 32b. I am going to have to buy new bras very soon. So soon. I'm just wondering how large my boobs are expected to get, when I should begin to produce milk, and I think that my belly is beginning to show. Is this just the beginning for me? I'm beginning to think about cool new clothing, maternity clothing, bras, panties... Any suggestions or answers for me? That would be fun:)