same thing happened to me , he was head down but stuck in my hip , and was back to back with me , nothing had changed and by 38 weeks i got booked in for a c section , doctors explanation was as the baby cant engage properly it cant send labour signals and i would be a long time over due or need induction , which he said would be ending in a ce sec any way because ds was tangeld in the cord ..

the c sec took about 35 mins to get him out , he was deliverd by forceps and had brusing and a cut on his head from the scalpel ...

not to scare you but i went to the hosp appt saying that it felt like he was stuck and couldnt turn .. and thats how it turned out ...

get as much info as you can and try not to stress ....i hope it all goes well for you ...