Wondering if I'm alone...

I know it's normal for your SO and yourself to sometime bye on different pages. But has anyone ever bumped heads during their fertile window. It seems every time it's time to start baby making we just bump heads and miss most if not all of the window. I was thinking maybe it's a sign that it isn't the right time...this will be our third child, we lost a baby at 6 months pregnant before our miracle daughter that is 4 now...I just can't help but think it isn't in the cards for me maybe...

...just for others out there I am aware that I am sitting here complaining about not having another child, when their are women out there that haven't had their first...