But a week before(Nov 6) me and my boy frirnd were fooling around. We both were having no clothes on and he ejaculated near my vagina(not inside atleast i guess so).I dint take any pills later.I got periods last time on sep 21.I hav not got periods till now. I am afraid if i am pregnant . How to know if I am pregnant or not?Are there any chances of being pregnant?