The hardest and harshest words

My sister just had her 2nd baby, both without trying. She likes to tell me I'm lucky because I don't have a kids and can do what ever, when ever. I told her I was worried because 2years of try and nothing not even a small hope yet and she just says stop trying so I told her I did for over 5 months and she said it will happen when it happens. So it's like a triple whammy from my own sister. She knows how much I want one and how hard I'm taking the possibility that my husband and/or I might be infertile. Just needed to get it off my chest.