Mark 12:25 For when they shall rise from the dead, they neither marry, nor are given in marriage; but are as the angels which are in heaven.
You are probably correct about our bodies being different. There will be no more pain, aging or encumbrances we suffer from in our unnaturally sinful state. Regardless of how some interpret scripture here, angels do not propagate. Neither will we. Our wants will be of a spiritual nature and much less of a carnal one. In fact our most urgent desire will be to commune with God and that will be be met abundantly.