You said you are getting your mirena
removed 2 days after the intercourse , near your ovulation days , the chances are very less as mirena prevents sperm travelling inside the uterine cavity
. Sperm can live upto 7 days of ejaculate but in vagina it is very difficult for them to survive.To be on the safer side means 100% sure you should wait for a couple of days for its removal.If you want to continue with pregnancy
then its a different story.