Hi Michelle,
Try not to panic (Easier said then done) Im at the 7 week po mark and they I had resigned myself that I went for the wrong size and they were too small but at week 6/7 they feel like they’re getting bigger again, the 2nd week until the 4th was definitely the worse for me, but they will change. Dont get too hung up on size, I was obsessed with it and my profile looked no difference to when I was wearing a bra before. I found it easiest to just stop looking at them and pretend like I never had them done for a week or so, and then only look at them a few days later, you notice the difference a lot more. My cousin had hers done and shes a year down the line and hers are so different from her first few months its amazing! Xx