I'm an EDS mummy too. I live in the UK so there tend to be different recomendations (guessing your in the US) but here we're not automatically recomended to induce early just because of EDS, unless there is an extra complication. My 1st was 9lb 15oz, I delivered him with a dislocated hip but not because of the pushing, I was trying to reach the bell to call the midwife and decided to leap across the bed to do so, I tend to think I am more agile than I am
. Anyway I couldn't get it back properly, it had been subluxing for weeks so it just didn't want to stay in there. Anyway after birth it was fine and other than that my joints were good. I had physio with my normal therapist and with a prenatal physio, to learn good positions for labour and delivery and what positions could cause trouble for my joints. Obviously an epidural and delivery lying on your back isn't recomended and as induction can increase the odds of needing both early induction wasn't recomended to me by anyone (physio, consultant, MW).
If you have the option of a water birth I would really recommend it. I had one with my 2nd and it really helped my joints. I know a lot of other EDS mums say the same, and it was what my consultant suggested.
Also (I know I've waffled a lot!) but scans can be way off. DS's weight was 2lbs off the weight we were told- the day before he was born. That is one heck of a growth spurt
. And a lot of the EDS mums I've spoken to or been told about say that their bigger babies put less pressure on their joints at delivery as the weigt put pressure on the rigt places and helped the pelvis open up, rather than the pushing spreading the hips or back. Before I got in the water to deliver my DD my joints were in a lot more pain than with my DS and she only weiged 8lb.