you should be okay to. i started wearing them at 4 weeks, but you can always call your nurse to check 🙂 i popped into VS and explained my situation, they did a measure and told me what i was. i was aware that they will change and could possibly get bigger/drop more etc so i didn’t mind if it only fit for a week or so.. but I’m still wearing it to this day and its comfortable, so I’ve nearly had 4 weeks out of it.
i think it depends who your surgeon is as to what they recommend on bras. i read one lady was given the all clear to wear non wired bras at 6 weeks, but usually its wired bras being given the go ahead at that stage. non wired bras should cause any damage as there is no wired to distort or damage the breast implant xx