If we are called.

I think these next couple of verses really sum up this whole experience with infertility and that this is something we can gain from:
Doctrine and Covenants 122: 5-7

5 If thou art called to pass through ^atribulation... 

 7 And if thou shouldst be cast into the ^apit, or into the hands of murderers, and the sentence of death passed upon thee; if thou be cast into the ^bdeep; if the billowing surge conspire against thee; if fierce winds become thine enemy; if the heavens gather blackness, and all the elements combine to ^chedge up the way; and above all, if the very jaws of ^dhell shall gape open the mouth wide after thee, know thou, my son, that all these things shall give thee^eexperience, and shall be for thy good.