when to have sex in a long distance relationship!

Rebecca
I'm in a new relationship that is long distance with a guy I met online. He met me a few weeks ago and everything was amazing. But I don't know when's the right time to have sex with him. I don't want to place a number, but we can only visit once a month so it's tough to be intimate. He claims we should just let it happen when we are ready to, but I wanna wait until we've been physical a couple times? Is it wrong to say I'd rather wait until we've been physically intimate 3 or 4 times?