What would you call that feeling you get down there when feel like your period is about to start?

For example; any other time in your cycle if you have discharge come out I don’t freak out and it just feels like normal discharge coming out but when your period is due when discharge comes out it feels different? Like this “feeling” makes me always rush to the bathroom to make sure it’s not period blood because it always feels different. Does this make sense? Anyone else ever get this feeling? I’m just hoping this feeling I always get doesn’t mean I’m out for this month because I feel like AF is coming and my period is due tomorrow!