Finally the doctor arrived, and we got the procedure underway. When the dye was squirted into my uterus, it was clear that both tubes filled, but we could only see spillage from the left tube. The doctor suggested doing another round of dye to see if we could get the right to spill, but we weren't able to see if it did.
Thankfully both times weren't too painful, besides a few sharp twinges. I had some spotting that afternoon and evening, but it cleared up by the next morning.
Thursday, I received this message from my RE:
I have a follow up appointment on the 18th at which I'm assuming we'll talk about the HSG results, results from the ultrasound, and schedule surgery. I'm hoping it's something small which can be taken care of with a simple surgery. I'm assuming it will be suggested that we don't TTC during December, so our first medicated cycle will be in January. I'll update after my appointment on the 18th.