chances of me being pregnant??

I’ve had unprotected sex about 10 times since New Years. He didn’t use condoms any time, but used the pull out method each time. My next period is due in 10 days, and I haven’t been experiencing any symptoms that I think could mean I’m pregnant, but I’m still worried. The only symptom to name is bloating, and that could just be my regular cycle. I’m 18 and I’m not on any form of birth control.