You have the possibility to make children and you're deliberatly ignoring it. Obviously, it is going to raise a few questions in your head every now and then. Especially to an N.
What would it be like?
Am I missing out?
Will I regret this descision?
Should I really pass on this oppertunity?
Oh well, I love my life so I best not think about it too much.
But trust me, that suppose you decide to have children for those reason, in a few years you'll be:
What would it be like if I had no children?
Did I deprave myself of an oppertunity and lifestyle?
Should I regret having children?
Should I have passed up on the oppertunity?
Oh well, I love the buggers, so I best not think about it too much.
Choice is yours, your life is your life, reason to regret is non existant. Choose your path and accept it.