<human>: Can you provide a brief rundown of the text in within 3 sentences?

My gf of over a year and a half just had a baby a month ago. Her parents are really religious and we never told them that I was married before and have another child from my ex-wife. 

Back story there: High school sweethearts, I join the military, we do the long distance thing for 4 years (after 2 years of dating in high school) then I get out of the military and we get married 6 months later. After living with her I continually got more and more unhappy as she wasn't the person I remembered from high school and I couldn't see myself spending the rest of my life so unhappy. 

We've been living together for over a year and we never told her parents early. Then as time went on there was never a good time to tell them. Now it's this weird thing where there never seems like a good time to tell them but the longer it goes on the more we wish we've already let them know. 

Any ideas?
<bot>: How do I tell my gf's parents after 1.5 years of being together and having a 1 mo old baby that I have another child?