What is the Ramzi Theory?

Stephanie • Happily married. 💜 25 years young. Mommy to Maximilliano (7-9-16) and Maverick (10-3-18).
I keep seeing it. What is it? 
7 weeks 6 days
11 weeks 6 days
My next appointment is on the 1st and I will be 15 weeks 6 days