Good luck @PennyPencils! Are you being monitored? How many follicles did you have? I had Letrozole this cycle (so I could time some medication) and had 3 mature ones, which was what my doctor was looking for. Still only a 35% chance of pregnancy due to likely egg quality.
Id previously set myself a cut off of 40, but I’d have to conceive this cycle or next to squeeze a baby in, so will probably extend it a bit. It’s harder to justify the risks etc when you’ve already got kids I think.