can I get pregnant on the iud

Abby
I haven't had my iud longer then 3 months and I'm not gunna lie I didn't go to the check up I was so busy getting my baby ready for his surgery I kinda forgot ,
But I had unprotected sex two weeks ago and I haven't been feeling right since I've been sick to my stomach for a week straight now but my motto is if you hear footprints don't think zebras but my friends been freaking me out so now I'm here asking is there a possibility or am I just pmsing I also threw up today