Last night, I (female) was having sex with my boyfriend. During that event, we were using protection but then he took off his condom. I gave him oral and he ejaculated. There was semen left on his penis and he didn't wash it off, so it dried. A few hours later, the outside of my vagina came in contact with his penis. During that time frame, there was no vaginal penetration at all. Though, I am very worried.
Is there a possibility of me becoming pregnant from having the outside of my vagina come in contract with dry semen and/or pre-ejaculation?
And if so, should I take the morning after pill?