Virgin

I want to have sex in 19 years old and I am ready and I crave it... But the guy I'm seeing thinks I'm not a virgin how do I go about sex with him and about him thinking About that I'm still a virgin.. I know I shouldn't lie but should I play it off ? I've almost had sex before 3 times my ex could just never get it in so technically I know the pain because it was close but we ended up stoping. Thoughts?