Should I have a baby?

I'm 37, happily married (8 year relationship), and have a high paying work from home job. My biological clock is screaming but I'm terrified when I think about all that motherhood entails. Husband is on board but also scared. I don't want to wait until it's too late and regret not being a mother. I should also mention I have a cat and 3 dogs. One of the dogs is paralyzed and incontinent which is a lot of work but we have it down to a science now. Should we go for it and have a kid? I've never been into kids but I love mothering my dogs. I know it's different.