I've been tracking my cervix position for awhile now because I'm trying to convince. Well glow says my fertile window starts tomorrow my husband and I have been having sex on a regular basis. But glow says my fertile period starts tomorrow my cervix is high and there is like a little open slit but my cervix is still feels like a hard ball so I'm not sure if that mean I won't be ovulating this month. BTW I got my nexplanon taken out late last month and had my period a few days later.