The OP raises a valid question (unfortunately, it could have been phrased with more sensitivity). It is a halachic question I have asked my Rov in general terms about maaser allocation (not specifically about infertility). I was told that rov maaser should be given to aniyim. Since I cannot be sure that the dollars I give to certain worthy organizations are going to aniyim, I allocate these funds (rov maaser) to volunteer-only organizations that feed the hungry or otherwise help the impoverished and hope for the best.
I hope this is helpful to the OP and as many have said, this is a question for *your* LOR.