Iud string too long??

So I got my iud out in when my son was two months old she told me that if my partner could feel the strings then come back and she can trim them. He’s been able to feel them ever since I got it and tonight we were having sex I was bent over the bed and he was standing and getting it from behind had always hurt a little more ever since getting the iud and after we were done we were still in position I guess he was looking at my ass or something lol and said that I needed to get them trimmed that he feels them and that their pokey lol I asked him to go in until he could feel them and it was pretty low like his whole dick wasn’t inside yet at all maybe just half way. Has anyone else had this happen to them??

** I know asking him to go in to where he can feel them is a little bit weird but we’ve been together for 7 years and virtually nothing is awkward for us lol just had to put that out there and plus he seen a whole damn baby come out of my whoohaa 😂😂