AF never showed!

I am currently on CD 38 with no show or sign of AF coming anytime soon. I usually have 31 day cycles, with the occasional 35 day cycle. I have no symptoms we have been trying for 4 months now and nothing yet. I took one test on first day of my missed period and it was negative and I took another one on Tuesday which was also negative! I’m tired of seeing negatives so I’m just going to wait it out until Saturday and if nothing still then I’ll take another! Both of other pregnancies had taken a while to show so I’m hoping for the best!!!