TTC with little to no CM

Shay
Me and My partner have been TTC for 8 months now and after downloading this app and reading different posts and answering polls I have realized that I produce no CM and I don't know why... My cycle is very regular every 30 days and my Lh surge last for 5 days... but during my ovulation time I don't get any egg white fluid... Any advice on how to increase my fluid or what could be causing it.