My girlfriend has had nexplanon in for about one and half years now and about 2 weeks ago we had unprotected sex. I did not ejaculate inside of her because after a little while we decided to put on a condom as well. She's about a week late on her period and I'm worried that pre cum could have gotten her pregnate. She took a test last week and it was negative and plans on taking another one in a few days. What are the chances of someone getting pregnate from pre cum on nexplanon? How long do you think we have to wait to get an accurate test result? I should also mention that she is just getting over a UTI. She had a pretty bad one but the doctors gave her some antibiotics.