Girls, hi! I'm at 34 weeks and three days pregnant. I was getting read…

Girls, hi! I'm at 34 weeks and three days pregnant. I was getting ready for a shower, preparing my things, and then in my stomach it felt strange - like water is flowing down or something similar. Like from a toilet, it's draining. It's weird, I don't know how to explain it. I'm really scared that this could be, because the sound was so normal. Now I'm worried.