46 days since last period

I've taken tests and only gotten faint positives after the tests have sat for a while. I've had white discharge since ovulation. Normally my period is never this late. I did have an early miscarriage 4 months ago..I'm worried that's what is happening now. What could be going on?????Also I'm less stressed then I normally am. So I don't think that's the reason..

These are a couple of the tests I took recently.