Some people just dont get it....

My sister in law was chatting with me yesterday and I understand she is trying to be supportive but she just has no idea about our infertility struggle. I have no idea how to react to some of her comments. They just bombard me with emotional confusion. My husband and I have been TTC for over 4 years....we have spent lots of time with a specialist and it has not happened. My sister in law has gotten pregnant twice very quickly after stopping BC and just seeing if it would happen. Quickly as in the first month even. Yesterday she told me "you just need to pray to God and tell him you would raise a child in His faith and teach your child about God". As if I haven't done that a Million times......