Same day IUD removal & insertion

Hey y’all! I’m getting my Skyla IUD removed & Mirena IUD inserted today. Loved skyla for the 3 yrs I had it, but want to try out the Mirena. Does anyone know if your body still goes through that adjustment period (bleeding/spotting for weeks, longer periods etc) even if you’ve already had an IUD? Just trying to mentally prepare myself 😭