Unsure what now

I’m 40yo in August, unexplained infertility for my husband and I. Two failed untested FETs last year. Third one in December 2024 and we transferred a mosaic (a gamble, I know). Just had a d&c this week after heart stopped around 8 weeks but found out at 10wks.

I feel like seeing a pregnancy happen finally gave me the strength to go on. The thing I’m unsure of is we have done 3 rounds and after PGT testing, ended up with 4 mosaic embryos, 4 others that can’t be used.

The doctor says it’s my age, so do you just give up? Or keep flogging yourself with rounds in the hope you might get a euploid? It’s so hard to tell. I’d love to hear from anyone 39+ that had similar experience or if it was/wasn’t worth pushing on, I’m very torn