Am I pregnant?

Morning!

I am on day 3 of missed period. And I am noticing an increase of discharge along with milky white discharge. I haven’t had that since my first pregnancy and am experiencing mild cramps) I bought two dollars to test a and took one last night and it read negative but then took another one this morning (with enough urine on it) and it came out with no results

Help!

I honestly feel like I could be but this so confusing!