Think i married by mistake adn want to go back to another relationship?

I'm a 25yr old man.I'm married 3 months to my 2nd wife. I got married real young before and the marriage didnt work out - i was only 19 when i got married. WAs divorced by 22. I have one kid with that woman. Then i met someone in between and figured it wasnt going anywhere, although we also had a kid together. Anyhow, 8 months ago, i met my current wife. We are just married 3 months, shes also pregnant, and now, I feel maybe we got married too soon. We are at the stage of telling everyone about the pregnancy so its going to be akward to end this marriage. To further complicate things, I'm now back with the woman i had a realtionship with before this marriage and realise that we are getting on btter than ever now that we are not married. I'm getitng counselling again and the counseller reckons i need time on my own. Please help.