No Ovulation....? HELP!!!!

I know I don't want to go on about trying to conceive too much, but as most of my followers are Mummies, I am hoping that someone out there might be able to help me.

I use Fertility Friend for charting and am really concerned that I haven't ovulated this month, even though FF is telling me, albeit tentatively, that I ovulated last Sunday.

If anyone has charted before and thinks they might be able to help me, please have a look at my chart below and let me know what you think.

This is driving me CRAZY!

Thank you x