We did back to back stim cycles after our first cycle was cancelled just hours before the ET. My FS said it wasn't a problem other than how I would cope emotionally. I knew I'd be worse just waiting so launched straight into it. Egg numbers and quality were better second time around and I'm very glad we didn't wait as we achieved our BFP.

For us it worked but my advice would be do what you feel is right for you.

Good luck!

Lise