Pink is DD and blue is DS.
I don't focus on these a lot. I track it in my app and look at it now and then. I am adjusting what they are eating so I might be looking at their weights a bit more closely.
Pardon the spiked lines in height. I wasn't doing a good job with measuring at the heel earlier in the year.
Oh, I keep track of their stats at dr visits and each month for their monthly photo.
Oh, the app (Total Baby) tracks it in their adjusted age since they were preemies. Why you see points before their due date.