S&P 500 goes 11 days without pullback - Will Monday be the day??

It has been 11 days since the S&P 500 has made a real pullback. I thought today was going to be it, but even with a lot of downward pressure the bulls still took the day. If you look at the end of month pullbacks for March and April, they actually only showed signs of weakness on the last day. The major pull back came on the first. Will be interesting to see what Monday holds. Bears vs. Bulls. Are we in Chicago?