Ok everyone, I am sort of new to the TTC community. My husband and I have been TTC for about 3 months and it has been smooth sailing with my periods being regular and everything about a 30 day cycle, up until this month. I am using one other app to track as well and inputting all the same info but for some reason, the other app says I am 7 days late for my period and this app says I'm 2 days late for my period. Ive had mild cramping, a lot of indigestion and some pretty frequent headaches. But all of the pregnancy tests I take are negative! I am on CD 38, no period or spotting!! Do you think I should keep testing? Is this normal?