Is my girlfriend pregnant even if she's on the implant? Me and my girlfriend have been together for around 5 months now and have had very regular sex since the beginning of our relationship. We haven't been using condoms or pulling out as she is in the implant. because many of the symptoms are the same as the implant (eg. No period, achy boobs) we haven't paid any attention to them but recently I've noticed that her lower abdomen is very swollen and firm. She hasn't said anything herself but after reading up about pregnancy in the first trimester, I'm suspicious. Thank you