Eh, aku ada few mum friends yang pakai IUCD, kebanyakan sila okay je lah, ada cramping for a few days after insertion tapi lepas tu fine. Regarding pain during intercourse, honestly most of them cakap takde issue, tapi ada sorang dua yang rasa slight discomfort mula-mula je, pastu hilang after a few weeks sebab the body adapt. Best check with your gynae though, sebab setiap orang lain-lain experience and dia boleh explain better based on the type of IUCD you're thinking of, hormonal vs copper pun beda sikit side effectnya!