Am I pregnant

So about 14 days ago my boyfriend and I were at his house without any condoms so he convinced me to let him go inside of me for “only 5 seconds” and that’s exactly what he did (please don’t tell me to learn more about sex before having intercourse because we’ve been safe ever since we started up until this time) my period is due around June 9th and my discharge has just been creamy and lotion like. It’s a little thinner now. I haven’t had any implantation bleeding and I haven’t been experiencing any low abdominal cramps. I haven’t been experiencing any headaches but I’ve been getting a little lightheaded recently. I’m not to sure how long it takes to be gaining wait while pregnant but I’ve actually been losing a little weight. I know it’s possible to get pregnant from just Precum, but I’m just curious if the discharge and the dizziness sound like early pregnancy symptoms.