Ladies thid has never happened to me before!!!

So I was brushing my tongue and started gagging but it was the front of my tongue where I was brushing not even far enough to be making me gag! But I kept trying thinking nothing off it then I carried on and it kept on making me gag again and again then I threw up a little bit. Could this be an early sign of pregnancy or just overthinking it, only reason I’m a bit confused as it’s never happened to me just for the tip of my tongue? Thanks in advance anyway! :)