So my boyfriend & I had sex twice yesterday & once last week. All three times he ejaculated in me. Since I’ve started the implant I’ve had my period twice a month though, I’ve had the implant for four months now. When we had sex yesterday I was fresh off my second period. & when we did it last week I had about 3 more days until I started my period. I’m trying to decide if I should go take a plan B, get a test, or am I just being paranoid.