WWYD after 3rd FET failed?

TW: Miscarriage

Hi beautiful people. Looking for some advice/encouragement and maybe shared experiences.

My wife (38F) and I (28F) started this journey almost 2 years ago.

Our goal is RIVF and for me to carry. My wife originally did the egg retrieval just after turning 37 and we were so ecstatic to have 3 euploid embryos.

Our first two FETs failed to implant. Then we did a mock ERA which was totally normal, the only thing we changed was doing first PIO shot 12 hrs earlier.

So we began prepping for our 3rd FET adding omnitrope this time. While prepping, they found what they thought could’ve been a uterine polyp. Not worth getting into, but I really had to advocate for an in office hysteroscopy as the PA said it was really minimal and probably okay. Thank goodness we did as I needed surgery and the Dr said “thank goodness we did that, we got a lot out.”

So I was feeling great going into the 3rd FET, which finally implanted. We were so thrilled as we had never been this far before and it was our last embryo. I unfortunately miscarried at 5w2d. We are shattered and at a loss.

What would you do? I feel like I’ve done all the testing, and this is the first time we’ve made it to this point. Would you chalk this up to “just try another embryo,” advocate for something else? We are back at square 1 and need another retrieval. My wife is now a year older, should we switch to my eggs?

We are going to get a second opinion and explore all of our options but just hoping for some advice and to not feel so alone. Thank you!