So my boyfriend and i are ttc and my period according to glow is 3days late today. I have had cramps an hot flushes pre much ever sense ovulation which wasnt on the day glow said it would be it was later on. I have taken a first response test 1st day my period was missing, today i took a crystal clear test today an still negative :( should i wait to see if my period is later on or go to the docs?