Wtf bro, you are 21. She is not 18, she is 27. This is not a young love story. You need to snap out of your infatuation or the chickens will come home to roost, and you'll become another statistic.
We said this in every thread about your gf, but you need to work on de-centering her from your life. I'm sure she's a lovely girl. But even remotely considering impregnating a 27 year old you met a year ago when you're 21? Crazy talk, you're in deep