A good thing - and please go on with it as long as you can. The little one will benefit no end!
As a portrait, though, let alone of two, this doesn't really work. Although I could understand if you were hesitant to bring the mother more into it, and to focus in on the action, that would have been necessary to make it a portrait of two. With a suitable angle and/or lighting you could have maintained sufficient anonymity and decency, while elevating the level of interest beyond that of the devoted father alone.
Nice shot of motherhood, but the only thing in focus is one hand and a bit of the pink shirt. It seems a stretch for a two person portrait. Perhaps an OOBIE award is in the offing.