Pwede po kayong magtry magtake po ng FERN-D AT FERN ACTIV po yan po kasi ininom namin ni mister na 4 years na pong sumusubok. Safe and proven effective naman po siya kasi ilang months lang po pinalad po. Wala naman pong masamang sumubok.
If your mens is regular you can follow calendar method. Meron mga online app that you can download for free.