I should have been a statistics major

I love making charts, graphs, and trying to analyze data to see what it means for the future. However, I don't have any interesting data or much on my mind these days except wondering when Baby Sunshine is going to put in an appearance. For my OB appointment I brought in a chart of my progression of dilation/effacement with the last several pregnancies. Since I never got checked with the first 2 babies I don't have that info, but I showed up at L&D at 4cm with Will and 7cm with Mary, so it is likely I experienced early labor with them as well. At this stage with the last 3 babies I was already 3cm dilated and 50-75% effaced so I'm guessing with all these sleepless nights make it likely I am about the same now.

The other chart I made yesterday shows what date Baby Sunshine would appear compared to the other 5 babies. Since the earliest one was born at 37 weeks 2 days that would be today. Can you guess which child was born the earliest?