2wks late n (-) test

Kristin • 27 married army 2 girls ( 3 & 8 ) expecting our 3rd and final princess. recent miscarriage (04/24) we found out our rainbow is due 02/13/18 :)
My mind can't comprehend this. I mean I know we just only been TTC for only a month but I swear I was following my ovulation chart just right and tracked every symptom. And what worst my doctor won't be available to see me till April 22 which would put me 5 weeks and a day late if I still don't have a cycle.