Okay so I always give my boyfriend oral sex and I typically swallow. Well, fully clothed, I gave my boyfriend a blowjob 2 days ago. He came, and I couldn't swallow it due to the taste. So I spit it out back onto his penis and proceeded to give him a hand job. Then, we wiped everything up with a towel, cm got on my shirt so I took it off, and he gave me oral as well. Since I only wiped with a towel and I'm not sure if I ever touched myself during that night, should I be worried? Because I just started birth control so I'm only on the sugar pills - but my period was supposed to start 2 days ago. I have not had sex or direct genital contact ever.