Failed first FET

Ashley • Happily married for 3 years. 2 angel babies. Our 1st FET = BFN. 2nd FET = BFP! Expecting our miracle September 2017!
I feel devestated and so lost. We found out today that our first <a href="https://glowing.com/glow-fertility-program">IVF</a> Frozen embryo transfer was unsuccessful. 😢  Our doctor said he was very shocked and thought for sure we would be pregnant. I don't even know what to think of that. We transferred a day 5 hatching embryo (normal PGS) and my uterine lining was great. So, who freaking knows. 
I haven't stopped crying since I got the phone call. We have an appt with our doctor to talk about what's next for us. Luckily, we have frozen embryos, but it's so hard to look past this, and think if we used
The best of the best and it didn't work, why would it work the second time around? 
I'm starting to lose all hope. <a href="https://glowing.com/glow-fertility-program">IVF</a> isn't an easy process, and it just got even harder. 😢  so much emotion, so much hope, so much money. I just feel like it all went out the window. 
Trying to remain hopeful, it's so hard. I know God has a plan for us, but it's so hard to understand it or trust it right now.