If I remember right, that's when things went a bit wonky with us too, and I used to split that midday feed - half before nap and half after (one side each time), then "lunch" about 45 min after that. I was doing dinner at that point, so between the 5 bf and the bedtime bf, I did dinner around 6. She cut out the afternoon bf shortly after that, so I put a snack in it's place. As her am nap got later, I eventually did the whole bf before the nap and lunch when she woke up.
hth
michelle