Blowing bubbles???

So this is probably going to sound really weird but I’m 38 weeks and my vagina has started blowing bubbles? I really don’t know how else to explain it. It really doesn’t feel like a queef, it’s more like little marbles are making their way out and they “pop” if I move in a way that puts pressure on them? This is really odd....

I haven’t noticed an increase in discharge or anything either, just bubbles