The first stay home dad I saw was my older brother. When he told us seventeen years ago that he was going to drop his job and stay home to raise his daughter in order to allow his wife to continue her career, everyone's jaw dropped. It was unheard of! As far as I know he was probably the first guy to have ever filed a paternity leave in the country at that time.
Leaving that aside, I am glad you are enjoying your time bonding with your son!