YSK that if you get asked wether you plan on having kids during a job interview, you can just say No. Since the question is illegal in most places, nothing will happen if you do end up having kids.
from /r/YouShouldKnow
YSKさんは、もし面接で「子供を作る予定はありますか」と聞かれたら、「ありません」と答えればいいんです。