Honestly, since it's a temporary thing (P1), I'd think you're fine. However, I believe the recommendation for those watching their cholesterol is that you're fine with one a day. That said, yes, it's about yolks. So you could easily make an omelet with one yolk and several whites as someone else mentioned.
As Ruth said, however, South Beach is a great way to help reduce cholesterol issues, and as long as you are following the rest of the diet rigorously, your cholesterol should drop, so no worries.