Wlilian: guess are under going some ache, pain that some of us are not experiencing. but, my question to you is: do you love him? if yes, i suggest that you let it go, and dont push things to far. the incident was a "past tense", not a future tense. y u wan to log in to ur hubby email & check on his back. since u found out that they r see communicating, does it make u feels better? NO! sometime, close one eyes & open one eye. i used to be a control freak, and i realized man runs away from control freak woman. if ur hubby found out u r checking on him, he will feel that u dont trust him, and eventually argue & will sour ur relationship more. one thing get to another, the flame will heat up, and the consequences might be unbearable.
give urself & ur hubby a break. try to tell urself to trust & believe in him. for the sake of the family and ur coming out soon baby.
go for "baby moon", enjoy the time being together. i believe ur husband loves u so much, dat's y he married u. appreciate his love, his care and try not to look only at his past or his wrongdoings. if this continue, u can only finds that the distance btwn u guys are bigger, and u will be drawing further & further away from him.
I learnt from my past relationship before my marriage, that "TRUST" is the key in maintaining a happy & harmony family.
Wish you good luck...