Feeling defeated and helpless

IVF cycle- February. We got 7 non test embryos from that.

March-transfer and positive pregnancy test. Number looked great.

April-first ultrasound and there was an empty sac. Baby stopped developing early. April 12th d&c.

April to June-waited for a period and finally got one.

July-started frozen transfer prep. I was told my lining was thick but didn’t have the 3 layers. They thought It would be okay to continue but did warn me that implantation is less likely without the 3 layers

August-frozen transfer and now I’m waiting for the call saying my beta is negative. I tested this morning and no line.

Idk what to do. PGS testing the embryos we have for $6,000. Do another retrieval and test the new and old embryos. I’m so lost. I just want my take home baby.