ERA or transfer?

Penguin

Hi everyone, hoping I can get some opinions on my next steps. I'll try to summarize as best as I can!

I'm 31 (turning 32 next week), husband is 32. I have PCOS and my husband has MFI (low count and morphology).

1st IVF - 5 retrieved, 4 fertilized, 4 morulas on day five (so one day behind). We transferred the best morula, and the others did not make it to freeze.

2nd IVF - cancelled halfway due to low response. The reason my response was low the first two rounds was that my doctor was terrified to overstimulate me due to my extremely high AMH.

3rd IVF - 18 fertilized, 3 blasts (4AB, 3AB, day 6 3CB), did not do PGT-A.

We transferred the 4AB last month and unfortunately it did not work. I'm at the point in my infertility journey that I've had 2 transfers (I kind of count it as 1.5 since none of the other morulas made it and I'm convinced the one they transferred didn't either). I'm trying to decide if I should try the ERA next cycle or go into another transfer.

I'm personally leaning a bit more towards doing it, and the thing that puts me off it the most is that my clinic has been extremely conservative in their treatment due to Covid. Meaning that my original ivf cycle was delayed 3 months (similar to many others) and they are really controlling the number of transfers they do a month. They aren't even accepting day 1s for transfer cycles until September/1. I was only able to transfer earlier this month due to my doctor fighting for me. I'm on birth control now so that I can get for in a couple of days and call in my day 1 the first week of September.

I'm scared of a second wave and them canceling all transfers again and holding my embryos hostage (or that's what it feels like lol). Im from Toronto and it doesn't seem like other clinics are doing this. I hate that this is a consideration for me but I really want to be able to do another transfer this year. My doctor said that she's not concerned about implantation failure quite yet, however I am so scared of the regret that I will have if I do another transfer that fails, do the ERA anyway, and end up testing not receptive.

My husband is on the fence, leaning slightly more towards just going for another transfer. I would love to hear your opinion on this, thanks in advance!