Right so i had a normal period (for me) june 9th - june 13th (normal 5 days) i have a cycle of 42 days (6weeks) so glow calculated my next expected period was july 24th well i had some spotting from july 12th - july 18th i didnt have to use a pad or tampon the whole time as it was only when i wiped and was only once, twice max a day during that time, baring in mind my normal period is only 5 days long. Well i worked out 6 weeks from 12th july was august 23rd and i still have yet to have my period so i have taken tests and they all come up negative. Im really confused and dont know what is going on please help. Has anyone had this happen to them before?