Easy pregnancy success stories?

I'm 5w6d pregnant today from a 5AB euploid FET. My clinic does one beta (278 at 12dpt, so not great but not awful), then gives you a requisition for a 7 week ultrasound. I've had a MMC before (with Letrozole) so this wait is giving me bad anxiety, and I just want to hear success stories of things working out and going well once a transfer worked!