Early labor signs...?

Amanda

I’m 38+1 with my second born and was induced with my first born so I have no idea what natural labor is. This morning on my way to work I thought I felt a pop and a VERY small gush. All day I feel like my liner has been extra (sorry to use the word) moist and now I still feel a little extra moist and have been having a really achey lower back. I feel like if my water broke, I would for sure know but now I’m thinking I’m just over thinking everything. Any ideas?