Ovulation

6 days until my period is due according to glow. Was using clearblue advanced digital and got flashing smileys for 9 days straight, so I gave up and left it for a couple of days and just kept bding. Just did another ovulation test in the afternoon after a couple of hours hold and got a very very dark line. The darkest I have ever had! I have had some mild cramping and sore nipples today too. Is it possible I'm ovulating this late in my cycle?

Update got a solid smiley face on a clearblue advanced ovulation test too after not holding. Lines on the right are the test line..