Been ttc for 7 months, past couple of months have used persona fertility monitor to track my cycle do know we have been having sex at the right times. Period is due 2-11 but since 26-10 had very light pink/brown spotting and some cramping. Feel extremely tired pretty much all of the time. Could I be pregnant. My periods are quite regular give or take a couple of days although they always start as spotting then get heavier. Feeling confused and anxious advice needed :-)