I think it will not have negative impacts for your job search. When I was interviewed for my first job, I was pregnant and still I got the offer. It all depends on how you communicate with the hiring manager. If you find him a nice person, it is likely ok to let him know that you stayed home two years to take care of your baby and now it is the good timing for you to return to the job market. If you find him tough, maybe it is better not to tell him about your situation at the upfront, wait and see what he will ask. Overall, I think the hiring managers will understand and appreciate your situation. Good luck to all mommies!