help please, cycle #1 ttc after miscarriage

on 12/6/18 my husband and i learned we were pregnant and a week later i miscarried. since i was cleared to start trying again my hubs and i have done exactly that. i waited 4 weeks and tested bfn, 6 weeks bfn. i’m currently 2 days like with lots of snot like discharge, nausea, back pain, and headaches with loads of fatigue but i’m so discouraged and hate to test again in two more weeks which would make it 8 weeks and me only see one line or “not pregnant”.. help a girl out if you’ve been in a situation similar! thank you and God bless ladies 💗😊