Could i be pregnant? i had unprotected sex 3 times during ovulation the day before my iud (liletta) removal not knowing how long sperm could live. i had liletta for 2 years and had a routine cycle?

No, chance of conception is very less likely although sperms can be alive 3 days in your genital tract.

IUD should have barred entry and disintegrated any sperms if you had sex before its removal. In a normal situation uterus is fertile ground and sperms can live for a period conducive to the environment- which is ideal in the uterus- otherwise they disintegrate in less then 10 mts. So the chances are low but not 0. If worried get a preg test. good luck.