<s>[INST] I m 17 and I had oral sex for the first time ever with my first boyfriend.its now been 10 days and I have experienced feeling lightheaded and bloating and I am quite muscular and undertake frequent exercise so I don t know whether the hardening of my stomach is in relation to physical activity or something else .I was wondering what you think could be causing me to feel odd and also is it possible to get pregnant from unprotected oral sex if my boyfriend had ejacualtion on his hands when he was touching me ? [/INST] Hello dearI understand your concernOral sex does not cause pregnancy.Semen and precum pass through gastrointetinal tract and excreted in fetus.No chance to meet the sperm with ovum.Pregnancy is possible when you did unprotected penetrative sex or entry up to vaginal opening wit or without ejaculation.If you did during safe period of  cycle then pregnancy is not possible as no ovulation occur during this time.If boyfriend touch to vaginal opening with precum/ejaculation on it then there is chance iof pregnancy. But it also depend on amount of ejaculation enter into vagina.If your next period will delay by more than 7 days then go for urine pregnancy test to confirm pregnancy.Meanwhile avoid stress, take healthy diet, drink plenty of water, do regular exercise and use condom in future to prevent unwanted pregnancy.Hope this may help youContact further if follow up neededBest regardsDr. Sagar </s>