I have read many of your other postings,I can feel how much pain you are in emotionally, I am so sorry for that. First of all, think about the reason you want another baby, is it because he might be having one with the other woman? If your husband thinks you do nothing all day, then on his day off, how about suggesting that the two of you switch jobs for the day,maybe he will have a better understanding about what it is like to be a mom, it worked for me.
You are still young, please don't give yourself a time limit for having a baby. Also, you have only been married a short time, there is so much you need to learn about each other. From all that I have read from your postings, what I am seeing is a young woman who needs to find herself. You need to be independent and stand up for yourself. Possibly your husbands behavior towards you is because he feels guilty because he mat have impregnated another woman. He is taking that guilt out on you. I know what it is like to want to give your husband a child, so I understand your situation.
You are still in the process of finding yourself, with age comes wisdom and understanding. I have been married for 25 years and have been through a lot over the years.
My advice to you is to slow down and take a look at what is important in your life right now, like your children, they need you. Have another baby for the right reason, no card reader can tell you when you will have another child. First and foremost take care of yourself.