Ok so a little background. I have 2 daughters, 11years and 9years. I was 18 and 19 when I conceived (both surprises). My fiance and I are now TTC (different father than the other 2). LMP was 1/25, my period was supposed to come on 3/5, I have a long cycle. I've taken HPT and nothing but BFN. Last night and this morning I've had some very very very light brown discharge when I wipe, which I never get before my period. I've had some extremely light cramping, nothing compared to what I usually get before AF. Lots of lower back pain in the past 2 weeks, emotional changes as my daughter puts it, food aversion, and extremely sensitive sense of smell. Any helpful advice would help! please and thank you!