Late Period or Pregnant?

So I removed my Copper IUD, a non hormonal BC, on January 15th. This was a day AFTER my ovulation ended. Before my IUD removal, we had intercourse during my ovulation week. From what I remember, semen can last up to 5 days after inter course? I assume we wouldn’t be able to get pregnant during this time due to the IUD as well as the passing of my fertile days. A day after my removal, we again had intercourse a few days, tmi, just for fun lol

My question to you is, I was supposed to have my period on the 26th. I’m three days late, as AF has yet to visit me. Can my IUD be causing the late period or would I be pregnant already? Anyone else have a similar experience? Doctors never mentioned a late period... thanks

I have been experiencing light cramping, dizzy, headaches, and nausea. I have also been taking prenatal vitamins to get my body ready.