Dont be down on your self! You still have 4 more days!!!! Dont give up. Fingers crossed for you!
There's still a chance! I hear you about not being able to BD all the time during the fertile window....I work 12 hour night shifts (7pm-7:30am) and always happen to be working on the weekends that I'm fertile! It' s a downer....but like you said, it may just take a little longer! Lots of luck to you and all of us!