What due date do I go by? Different dates based on period and 2 ultrasounds

Laura • baby # 1 due february 2020 💞

I know I’ll confirm this with my midwife in my next appointment. But it’s a month away so wondering what your experiences were.

Due date based on last period - Feb 29, 2020

Due date based on 8 week ultrasound - March 1, 2020 (confirmed by midwife)

Due date based on 12 week ultrasound - February 25, 2020