How long until I test again?

I had a miscarriage in April and had the next period be irregular of course. Every period after that has been VERY normal. Like 28 cycle and 4 day periods. On the dot. Im 6 days late. The day before I was suppose to get my period I was getting MAJOR cramping like intense and so I thought “major pms i’m getting it tomorrow” and it never came. I’ve been SUPER emotional and didnt understand why until now i’m confused also weird symptoms like my breast hurting, bloat, etc.. The problem is, I took a pregnancy test 3 days late, 4 days late, and today being 6 days late. ALL negative!!! Wth!! How long did it take you for a positive? With my first/ previous pregnancy it took me 9 days late to get a positive but now im anxious!! Help!