My boyfriend and I began fooling around about a month ago, giving and receiving oral and manual sex. Because we have decided to abstain from intercourse for the time being(we're both 17) and we are both virgins who are sexually active for the first time, I am not on birth control. My periods have always been very irregular, so I don't have an exact date, but my last period was around a month and a half ago. While he has never come anywhere near my vagina, I'm terrified that I may somehow be pregnant. Also, he has always been extremely careful to not touch my vaginal opening after he has ejaculated. Is there any chance I might be pregnant?