@applecrunch92 Can I ask a few questions?
Do you plan to file for child support from him once you have the 2nd baby?
How sure are you that, if you do divorce, he will not want 50/50 custody of both children?
You seem to be living in a very odd bubble where you think everything will go your way. It won't.
You are being unbelievable selfish. Its not about what YOU want, it should be "what is best for the child I already have".
You are happy to use your abusive husband as a sperm donor without his knowledge that you will be divorcing and leaving him.
You are not thinking of the future for your current child and the one you want.
What would happen if you did conceive and then leave him and he finds out this was your plan all along? Do you think he would take this lying down, especially if he thought he was having another child with you as a family unit?
He would use this against you, most probably through the courts and rightly so.
What if he wants 50/50 custody? Are you going to deny him seeing his children? How? What evidence do you have to back up your claims of his abuse?
Or your 2nd child finds out what you did? Do you think they would think you were an amazing person? I doubt it.
Or your 1st child? They found out mummy just used daddy for another baby because they weren't enough child for you?
Have you told your family about this? Do you think they will back you if this gets out and they find out you just used your husband for his sperm?
Do you know your family will be supportive and will help you out or do you just "think" they will? Looking after 2 children is different from one child.
You seem very immature for 27 years old.
I agree with others, you need to seek professional help before you make any decisions or get pregnant again.