I totally understand how worrying this must feel, finding out about a double nuchal cord on top of the breech position at 33 weeks. When I was pregnant with my second, my gynae also flagged something unexpected at one of my scans and I remember just staring at the screen feeling so anxious, not knowing what to think. The good thing is you still have a few more weeks to go, and babies can shift positions and cords can move too, so things may look different by the time you are closer to your due date. That said, with something like this it is really important to keep all your follow-up appointments and speak openly with your gynae or specialist about what it means for your delivery plan, so they can monitor you and baby closely. Please do not hesitate to call your gynae's clinic if you feel uncertain or need reassurance before your next appointment. You are doing the right thing by asking questions, and I hope you get good news at your next scan.