morning sickness? PREGNANT?!

Okay I had anal sex about a month and a half ago and I'm 2 weeks late on my period and I know the chances of getting pregnant from anal sex are like slim to none because cmon what are the chances that's semen will get into your vagina from that BUT I've been extremely nauseous the past 5 days or so. Like I go to bed nausuous and I wake up nauseous and I'm a little concerned. I know I sound ridiculous right now but is that totally crazy? About to take a pregnancy test today I'm freaking out so much.