Past sexual experience...

We've done, fingering, handjobs, blowjobs, he's eaten my out and even anal sex. I know I definitely am not a virgin spiritually and I've done a lot I know that, but I haven't actually had the legalistic form of sex in my mind.. but I just remembered this one time my ex and I were making out naked and his dick actually went in my pussy once and when he realized it her pulled out and apologized and we kept making out. does that mean I'm not a virgin anymore? It sounds pretty stupid and juvenile but I just am really curious on the opinions out there. does him going in literally once mean I've had sex?