Anyone else experience this?!

Tina

So I have an IUD (got it May 1st) and my bf and I were having sex this morning, we changed positions and I guess he was able to get deeper? I dunno but omg I had the WORST stabbing pain, lasted a couple seconds and was gone but it instantly brought tears to my eyes.

Does/has anyone else experienced this? I'm thinking it's because of the IUD...