Chances of being pregnant???

My boyfriend and i have had sex a few times since my last period, all of those times he has gone in raw for a few strokes, then he put a condom on and pulled out before he came. I’ve been experiencing cramps, sore breast and a headache all day, and I’m not sure if that’s a sign of pregnancy? It’s too early to take a test and I’m really paranoid. HELP

my last period was sometime around 1/19-1/25