Divorce, DNA, & child custody! HELP!

When I was 19 I found out I was pregnant with my first son, 2 weeks later I married his father because my mom pushed us too. We have been married 4 years and its been a rough marriage because we are both very unhappy. We fight all the time and just cannot get along in front of our child. Last summer, we pretty much broke up but I had no where to go so O continued living in the house but I stayed busy as much as possible just to get away from him.

I ended up seeing my first "Love" who I was with previously 6years before, and its a long history, anways I saw him last summer and I wound up pregnant. But at the same time, my husband was seeing someone else also. (husbands name is tommy) (love's name is adam) well, adam asked me to move in with my son I already has ( sons name is seth) but we were not going to be together. He just wanted to do the right thing and take care of me during the pregnancy of our unborn son who later was named alex. Well, I didn't want to do this because I was too comfterable living where I was and felt it wouldd be better to stay with my husband. So, that drove adam away to where he didn't want to take care of ethier of us, YES my husband was for me moving out. He gave me the option.

A couple of months later, adam returned and I was happy. Adam decided he wanted us to be a family, but under the circumstances, we kept our relationship a secret due to the holidays that were around the corner and decided after the holidays I would finally move in with him. But during the waiting period, me and him was fighting way too much and our fights were getting out of hand. The fighting continued for a couple of months until 1 month before he was born he left again and decided not to have anything to do with the baby.

So, when the baby was born, my husbands name was placed on the birth certificate because I guess by law if no one claims then he's persumed the father since we are legally married, He has also been supporting me the newborn. About 1 month after the baby was born, I realized that I was very unhappy. I realized that I was in a unhealthy relationship with my husband because neither one of us loved each other and we both felt like we were trapped. I was also realizing that I made a mistake by not being with adam when I had the chance, so I reached out to him, found out through the whole process he was looking for a good stable job, so he could be with his son, but was staying away until he was stable enough to provide for him. So, over the next month, HE saw alex 2-3 times. By the next month, me and him were working things out.

NOW, he lives in arkansas. We live in louisiana. He's in arkansas for his job. We've successfully have kept our relationship going for 3 months now. We communicate better then ever and finally put our horrible past behind us. We very much love each other and BOTH took this last year as a big eye opener to see we are ready to be togethher and live together.

But here's the questions.
1. Can I leave my husband and move to arkansas with OUR son, IF I plan to bring him back once a week for a couple of days for visatation?

2. What do I do about mine and adams son if I my husband is persumed the father? How can I go about getting his rights back the legal way?

3. Can I live with adam before my divorce?

4. What's the responsible way of doing this, and the legal way to move out and in with him in arkansas with the 2 children which in 1 child is not his?

5. Could my marriage end in the 6 months mark if I plead adultery?

6. I'm so confused....what steps should I take?