A month ago my girlfriend got an IUD inserted, the night before checking if the iud was in place (one month after the insertion) we had unprotected sex and I ejaculated inside of her. She was on the last day of her period and the next morning it turned out the iud was not in place and they removed it and gave my girlfriend emergency contraception (this was between 24 hours of having unprotected sex). A week later she's filling fatigued and nauseous. I am worrying sick that she might be pregnant even after reading that its not probable after doing it the last day of the period and taking emergency contraception the next day. Am I worrying over nothing? could she be experiencing something else?