12 days late

Sheyla

So my period was 12 days late and during that time I was experiencing bloating cramps and fluttering on my lower left side of my stomach I was also very emotional crying for any reason and I’m still very emotional breast still tender to the touch I got 3 negative test and today I woke up bleeding and cramping really bad left side only tmi but my blood is brownish red and very watery first time I checked it was a bit clotty now jus very watery does anyone know what it could be? I’ve also been on depo before but my last shot was November 2018 since then I haven’t had my period come back until April 2019 missed 2 months then came back in July 2019 and been kind of on track since then until now and if it’s my period cool but why did it take so long to come my periods been kind of on track these last couple months I never knew trying to get pregnant would be this hard