Libido

I stopped having sex in November by choice. Now i never crave sex or miss it, some of my friends and i were talking and the way they describe missing/needing sex is nothing i can relate to. I’ve had good sex before to the point of orgasming & everything, but i guess sex just never wasnt/isnt a big deal to me ? Is it weird that i don’t miss it or think about it doing it as much as them? I’m only 19 and i feel like i have a very low sex drive for my age, it’s kinda scaring me.