Getting close now.
Sarah had another ultrasound yesterday, just to check things. Unfortunately I couldn't be there due to a self-inflicted scheduling screw up. Apparently you could see hair on the ultrasound, so I'm a bit bummed to have missed it.
The baby has "dropped", so that's good. Her head's still down, and she's swallowing, so that's all good too. Weight-wise she's now in the 38th percentile.
We're booked in for a C-section on the 14th, unless she comes of her own free will between now and then (which is what we'd prefer), in which case our OB will allow an attempt at a VBAC. Our OB is reluctant to allow the pregnancy to go past 39 weeks, given prior history and Sarah's heart, and they don't induce for VBACs, so it's going to require some planetary alignment to avoid a C-section.
The whole heart thing still being an issue was only a fairly recent discovery for us. Sarah's cardiac surgeon had told us we could go forth and have as many kids as we wanted, but it turns out the fine print in that statement is that while the previous aneurysm has been repaired, she has an undiagnosed connective tissue disorder, so there's no telling what might happen with the rest of her aorta in the future. So her OB is just doing what a good high-risk OB should do, and being extra paranoid, on two fronts.
So we've got a couple of weeks to try and convince our daughter to come more than a week and 2 days early. I don't think we have statistics on our side, unfortunately (although I had a surprisingly hard time finding concrete statistics on delivery dates relative to due dates for first-time deliveries versus subsequent deliveries).