My first baby was posterior. She was born posterior also didn't turn during labour or birth. My second came out OA (opposite to posterior) I don't know what position she was in in the final week or during labour. It was so much easier 2nd time around. Even if your baby is posterior now it doesn't mean it will be during labour and during birth even when they are posterior they can rotate whilst pushing (remarkable to see) Not all posterior births are difficult and seeing as your birth canal is a proven passage now your birth should be much easier then first time around even if your baby remains posterior. I hope he/she turns anterior as it is the easiest way to do it but if not I would take comfort in the fact your body has done it before and its unlikely to be a repeat of birth no1.

My first labour was days. When I got to hospital with no1 I was 6-7cm at 3am. By 1030am I was finally fully dilated (so much for 1cm an hour) and she was born at 127pm. I had being having regular painful contractions for 3days before she was born and at 1am 26hrs before being admitted I was 3-4cm. It was so long and exhausting. No2 I started bleeding so went to hospital on arrival my waters broke at 530am and she was born at 1130am. Labour really kicked in at about 9am so only 2.5hrs of active labour. It was a breeze in comparison to no1. But no2 wasn't posterior.