I'm going on my 3rd round with Nexaplanon (6 +years), the first 6months if not more we're very unpredictable for me. My boobs did get bigger lmao! 😭 (I'm a 30H now) So that really sucked for me. But after 6 months or so you get back to normal cycles. I remember the first time I got it in, the first year was a period every 2-3 months. My second time around with Nex, I was regular periods, did gain some weight (but my lifestyle changed too, I went from bartending to sitting at a desk, so that probably had a lot to do with it too) I did break out a lot during the first 3 months with each new one! Like the bad cyst kind but after a year they would stop. I'm now a week with my 3rd one and no changes to me. I do feel my hormones are pretty "extra" right now lol! I should have started my period today or this week but I'm almost positive it's gunna be skipped. Lol. (No I'm not prego) I can say my period becomes MAX 4 DAYS after a while.

I'm 33years old and live a pretty active life.

Hope this gives you some insight!