Actually a gestational sac and a yolk sac, both measuring 5w1d. I estimated I'm 5w4d, but I will happily admit to being wrong given how strange the preceding cycle was.
I'm thrilled and overjoyed to finally have something visible in there. The u/s itself was done by a tech who couldn't give details so I coached DH on what to look for and he was sure he saw a sac but didn't see anything in it from across the room. We're both really really excited. I know a billion things could go to shit from this point forward, but this is the farthest we've ever come on our journey to parenthood and it feels good to have reached at least this tiny milestone. Sadly we got no pictures. I may ask for some next week because I know my mom will want them for her scrapbook.
The doc said I'd get a call tomorrow with today's beta results and that I should come in again next week to check again for the embryo. She wasn't super concered about the spotting but wanted me to keep an eye on it and insisted I take it easy and observe pelvic rest (no sex). I told her it was mostly caramel colored and is now accompanied by itching and she said if I see other signs of a yeast infection I can call to get advised treatment. Until them, just topical stuff for itchy. Fun stuff huh?