Help?

I was supposed to ovulate sometime between January 9-15. I had sex on the 10th and I got very stretchy clear discharge on the 11th. Then on the 22nd I got a few hours of really light brown / pink discharge. Ended the same day. My period was supposed to start on the 28th. I figured period is coming early .. it never came ? I’ve been cramping / nauseous which are my typical period symptoms. Ever since I’ve had white almost lotion-y discharge , a ton of it. Today it’s much lighter in color and stretchy, it’s almost like the discharge I had on the 11th , just with a little white in it, still a ton. Of course I’ve taken a few test and they’re all negative . Did I just ovulate again? Could that be why my period is late ? I just had a baby 6 months ago and my period as been regular since I got it at 4w pp.