I'm new to glow , but I am currently ttc. After coming off of depo in October 2015 my period returned in April 2016. My obgyn put me on bc pills to jump start my cycle . After taking two bc pills my period finally came April 27, 2016 so I stopped taking them ... My period lasted 8 days I spotted May 5 through May 8th ... then everything stopped !!! On May 15,2016  I started bleeding again and it stopped on May 20th... I had sex on the week glow said I would be fertile ., I'm confused as to when I should do a hpt because I don't know the length of my cycles.... Any advice would be great !!!!