Another good report for Bit and Bitty today. I am 7 weeks 6 days, and one was measuring right at 7 weeks 6 days, with the other at 7 weeks 5 days. They doubled in size since last week--they are now measuring right around 2/3 of an inch. Their heartrates were 165 bpm and 155 bpm. Pretty much perfect for now! So thankful!