Advice!!!

Me and my boyfriend just recently within the past 2 months have begun being sexually active. Usually my periods were 21 days apart and now they’re 24 days apart (estimating cause it’s only been like 2 months) he’s nervous about me being pregnant. I’m not on birth control but he hasn’t cummed in me. It’s been 25 days since my last period. But I’m having all my normal pre-period symptoms. Am I okay and am I not pregnant???