46 Days since my AF, and no bfp

Tia

Is this normal to not get a bfp, and be late by almost 3 weeks.

I don't feel stress, I'm not drinking or doing anything to cause a change in my cycle. I'm don't have pregnancy symptoms, well I don't think the other day I did bust out into tears, and my appetite has increased, but I do work out more than usual.

This missed AF, is starting to depressed me.

Help