hi, quick question; i had sex with my girlfriend last night. (we use condoms; no birth control) after the first time, she cleaned me up with her mouth. and started to go at it again. she put me inside of her without my consent without a condom within 5 min of my previous ejaculation. and started having sex with me again for a min or 2 until i figured out what was going on and then i put a condom on. is there a good chance there s residue sperm left in my urethra? and it so should we consider taking a plan b pill to prevent pregnancy? any help is greatly appreciated. (p.s she finished her period 3 days ago.)