I Have This Gush Feeling Like I've Started My Period

I have this gush feeling like I've started my period and this never happened to me before it's been going on for a few days now but every time I got check myself I don't see nuthin get but my underwear are wet ???? I know I don't have any dieases I've been checked and I just had a baby in aug. of this year n I had almost a regular period