Wish and Hoping and Praying

Eva-Lorae
So my boyfriend and I have been trying to get pregnant for about 7 months now. Last month we though we had finally caught that little egg but only to find out my period was on it's way. This month we have agreed to have sex every single day. I have a 8year old and he has a 10 year old....both boys.  So not only am I praying for a baby with the man of my dreams, I hope it's a girl!
Any advice to successfully track my ovulation? I can never tell if I am or not. My period lasts between 3 and 5 days as well....
HELP!!!
Eva