Nervous 😬

Had sex unprotected about a week or so ago at first around my ovulation period, my SO did put a condom on before finishing... I am 2 weeks away from having my period. Im now experiecing heartburn, feeling gassy, feeling/looking fatter and a headache. Im not sure if this sounds like pregnancy but I wanted to know what you guys think (I am taking a pregnancy test later on tonight)

Im nervous bc im not trying to have a kid, I would like to wait a little longer for many reasons but if I am pregnant I will keep the child and do my best in being a mother