Why am I bleeding???

So I ended my period (heavy and totally normal 7 days long) on the 28th. I did have sex on my period and do pretty much everyday when I’m off. I noticed light brown milky discharge for the next 2 days after ( till yesterday ) , last night I was fingered and started to feel really wet down there but not normal so I got up and there was blood all over the comforter. I went to the bathroom still bleeding and woke up this morning seemed fine. About 20 minutes ago I was walking and felt 2 big gushes of liquid, looked in my underwear not blood. Then peed, more blood. Also had a panty liner with some on it. Anyone know what could be going on?? I NEVER spot after my period.