I'm very sorry you are in an emotionally abusive relationship.
Whilst I understand your feelings of running out of time against your biological clock. Having an abusive parent, even when parents no longer are together, destroys children. Often the immense hurt and effects of trauma are felt all the way through adulthood. Please do not knowingly bring any children in to an abusive relationship.
The guilt would also eat you up as a parent, and your child may even grow up to resent you. The other danger is that the child grows up to be just like his Dad.
And as pp have said you can become completely trapped in the relationship precisely because you have children, and do not want him having an awful influence on your growing child. Not wanting them to have fifty percent custody, or worse they make up lies to fight you for full custody. Also the emotional abusers get worse after having children. They also get worse at the stage a child is starting to pushback, talk back, have a voice and opinions of their own that do not meet with his. They want to control their children and see it as their right as they are in the abusers eye their possession. It is hell for the children and it will be hell for you as the parent.
You have a chance to do the right thing. Not only for a child, but yourself. You can and will be happier out of this relationship. You can meet someone else. I think you may have created a fake fantasy future in your mind if you were to "settle" and get pregnant soon. I promise it will not work out the way you'd expect or hope. It's really a pipe dream.
Perhaps burst that in your mind fantasy bubble, by reading other people's stories and experiences of having children with abusers or from children who have had a parent like your partner. I am sure there are many threads here on such topics.
Go and grab life with both hands. Escape this unhealthy toxic relationship. I hope you do and find someone worthy of being a Dad. There may be specific dating websites that are at a premium for like minded people. As someone else said, sperm donation as an absolute back up, or their is adoption. I wish you all the best.