Sex life

Recently I haven't wanted to have sex at all. Had sex 2 days ago for the first time in over a month, it was amazing and now I'm right back to not wanting. I don't want him traveling down south or any nipple play (which is my favorite) I recently got my IUD out (3 months ago) iud started causing pain with intercourse as it was embedded in my uterus. Could it be the hormones, timing, boredom? I want to... I just don't want to... You feel? Pic of my husband and I, I'm 19 he's 20