Here is my take on this....
I think we are dealt these struggles because it makes us exceptional mothers.... not just average ones.
I have been on both sides of this. I got pregnant at 15 and now at 33 it took me 7 years and three losses to get where I am today. Instead of taking pregnancy and life for granted I thank God every day for another day I get to have this baby growing inside of me. I know once this little guy is here there won't be a single middle of the night feeding I won't welcome with a smile.
It is so hard when it feels like it will never happen....getting a sticky BFP... but once it does it feels like all that time was just the blink of an eye. If you want a baby bad enough you will have one. Don't stop believing in you and the child you will someday have.
I agree it is sooooo hard though to know something comes so easy to those who don't want it... but we are left with the pain of wanting it so bad it HURTS
Chin up girl.... you turn is coming

And you will be an amazing mom because of it!