Question: PREGNANCY SCARE

I have an Mirena IUD that is about a year or two expired. Because of COVID I haven’t been able to get it out. I recently had sex on the 4th/5th day of what I assume is my period because the IUD is still messing up my schedule. The condom broke & so I went and took a NextChoice Emergency Contraceptive. I was wondering if anyone could tell me how likely it is that I am pregnant???