i went into a maternity bra at 5 weeks as underwire became my enemy. I bought one cup size up and its great. I just bought another one in the next size too.

I wouldnt worry about buying normal bras, just stick to maternity, especially if you are wanting to breastfeed, so you have the drop down cups. You can always wear them if you're not b/feeding too. No one will know.

I bought mine from best and less and big w and they were $22. I find them invaluable and so comfortable, but not the sexiest things going around