Can a Mitzva be done on behalf of an child still in the womb? I.e can I do a donation to a charity in my name, my wife's and my soon to be +1? If so, in what name would that mitzva be done in as +1 ...
Is there any source for the custom to not buy things for a baby before it is born? I have heard that the reason is due to averting ayin hara, but I would like to know if there is any recorded source ...