Unfaithful Husband

Got married recently. But how do you forgive your husband who's been unfaithful to you without you ever knowing? Nalaman mo nalang lahat lahat nung nahuli na. Di ko maiwasan na mag-replay sa utak ko ung mga nalaman ko, mga nabasa ko. Pero inassure naman ako ni hubby na willing syang magbago. But how? Preggy for 6months na. Nakaka stress ?