I adored my children, but I always knew I could never be a 100% fulltime mommy. My arrangement when they were small was that I worked at home as a freelancer and had a babysitter come in. If anything big happened, I was there, but otherwise I was not to be disturbed. That way I could take little breaks with them, be on hand if someone broke an arm or drew a great picture, and handle routine visits to the doctor, etc., but I was also putting in concentrated work time.
My wonderful babysitter went home to England for 5 months, and I said I’d wait for her. I almost went nuts during that time. No adult conversation until my husband came home (tired, wanting solitude and down time), no peer recognition, no relief from demands for attention, and an awful lot of coloring, building with blocks, and playing Candyland, whose invention I cursed almost by the hour.
When she came back I gave her a raise.
The main thing to weigh is how you feel—exactly as @RedPowerLady says. If you can devote your full attention to your child without feeling stifled and resentful, that’s wonderful. I knew I could give more to my children, and give them the better part of me, if I weren’t intellectually and socially starved myself.