Good day everyone, my story is this: according to ultrasound at 37 wee…

Good day everyone, my story is this: according to ultrasound at 37 weeks and 4 days, but according to my gynecologist, it's 41 weeks and 2 days. Is there such a big difference? Every night the baby presses on the uterus strongly, causing pain even to the third child, and I have never experienced anything like that. I am worried that I will suddenly go into labor. I went through a similar experience with my first child, who was born at 43 weeks. We were told to go for an appointment on March 17th.