Rethinking career after baby comes

I wonder who else is in a similar boat and what factors you all are weighing in this decision...

For context, I am about 19 weeks pregnant with my first. I work a very stressful corporate job for a large bank and my workdays tend to be 11-12 hours regularly. I'm even finding it hard while pregnant to get enough meals/nutrition in, let alone never find the time to exercise.

I'm just feeling exhausted already and can't imagine how I would sustain this lifestyle after maternity leave would end when my baby is still only 4 months old. In some ways I love my job, but the homemaker lifestyle seems so sweet sometimes, yet I'm afraid I would get bored/depressed.

Who else is thinking about a career change or even pausing their career after giving birth and what factors are you weighing?