Not sure of I can get pregnant or not

Kimberly
Me and my boyfriend had unprotected sex 11 days ago and I haven't really felt any symptoms, I've been off birth control for a little over 3 months ago and the only thing is I've been more tired, headaches, and I've had more mucus down there than usual, also I've been cramping from one side. But not really anything different and I haven't had any light bleeding. I've been a little depressed thinking that I may not be able to get pregnant and I know that pre semen can get you pregnant but nothing yet. Please help