So now you should take care of your wife. The woman should be cared for, especially during pregnancy. At the time of the marriage ceremony there is a promise that the husband will care for the wife throughout her life and the woman will serve the husband throughout his life. When the child is grown up then the husband can take sannyasa. Of course Lord Caitanya took sannyasa at 24 years, but that is a special case. I think that now you're doing more than sannyasa.
Letter to Karandhara, 5 August, 1971