ahh im so annoyed. me and hubby have been trying really hard this month, vits, cbfm (first month using it), OPKs and get this - weve BD every day for nearly past 2 weeks!!!! bless him hes knackered!
This part made me laugh! My poor DH said I was trying to kill him with all of the lol
As for the rest, it seems like you have covered all of the possible days that you may have ovulated and hopefully it will work and you'll get your :BFP:
Good luck!!! And.
https://www.newscientist.com/article/dn3927-women-can-ovulate-more-than-once-a-month.html
maybe you have been lucky, Fingers x'd you caught the egg, are you temping too to help identify when its happened?