What should I do about this?

So there’s this guy clearly likes me and wants sex with me, already implying he wants babies with me. Problem is I’m a lover of my own company and would be happily single for the rest of my life. I’m worried about having kids due to being genetically vulnerable in general. Also I don’t want to go through the horror of pregnancy childbirth also issue of STDs having sex. I would also want to sleep in separate rooms long term have my own space I crave solitude and not into the idea of couples that are tied at the hip. At same time, although I’m not into him now, we don’t know each other that well and I think I could possibly definitely be into him. He’s handsome, we’re compatible and he has a nice personality. I feel if I waste him then I’ll never be with anyone and then that means I’ll be single for the rest of my life. But at same time being single for rest of my life sounds awesome too and trust me I’ve already had the internal conversation about not doing anything due to societal pressure etc and being embarrassed about being a virgin or never been in a relationship or had kids. What on earth should I do about all this? I’m 27

What should I do about this?
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