Maybe you can let them know you have all the 'babies' out of your system and won't be jumping off the partner track in 5 years to have one.
Actually, in a job interview, I'm pretty sure that it's illegal for a potential employer to ask about your plans for (more) children.
Maybe I should add a line about DH's vasectomy to my resume !
i dont think that your taking off conventional work to take on motherhood will pose a problem unless the adcoms are stupid.