You could always try to get one now hon. I'd suggest going to a maternity shop and they usually know exactly whats going to fit after the baby gets here. I remember going into Thyme and a lady helped me out when I was preggy with my son as I had no clue about these things either

. Plus at the point you're at now, I don't think your growth will be dramatic and it will probably stop soon. Plus, when your milk comes in they tend to swell a bit more but not massively, but its been almost 4 years since I've been through it and my memory of it is kinda hazy. (yay for lack of sleep

)