Hello !Aproximately 2 weeks ago, me and my girlfriend (im 17, she's 16) did for the first time oral sex. Since then, my girlfriend's period didnt come. She's supposed to have it on 23rd and now it's 30, and still no signs of it. Look, im gonna be frank with you guys, i think there's no way in hell she's pregnant, cause here is how things went:She layed me down and started giving me a blowjob/ha****b, after i ejaculated, i wiped my hands, and we foreplayed with kissing and massage for another 10 minutes or so, soon after, i started stimulating her clitoris with my hands (not putting fingers inside) for 1-2 minutes, and then i started eating her until she came. That was pretty much, the whole sexual act. Im no professionist, but i gotta admit, that im a bit scared too that she might be pregnant, i still refuse to believe it though, i mean, just how... ? These days in which her period didnt come, she's been stressed ALOT. I tried calming her down, but at this point, nothing is calming her down. She cant take a pregnancy test just yet, she's in a vacation trip for 4 more days. Her parents dont know. Are there really any chances of her being pregnant ? Again, she's 16 and she's virgin. Is there anything to worry about ? What could cause her period to be 7 days late, and what are the chances of her being pregnant ?Please answer ! Thanks alot !