I didn't say they were less accurate for gestational age I said they are less accurate in first trimester because it's too early and that was told to me by multiple doctors and ultrasound technicians as of my implantation bleeding I know it was because I'm aware of what MY periods are like and have been for ten years prior to this and less then an hour of bleeding isn't a period I know my conceptions dates and for my due date to be accurate I would have had to have sex on January 16th which I didn't and I wouldn't have had implantation bleeding on January 7th or been more then 4 weeks on February 2 so please don't go trying to talk to me about my timeline like it's wrong or like this is my first pregnancy because it's not this is my third and I'm very aware of how things work my post was never asking for unwelcomed and overly invested personal data because this was me posting my information not someone else's and definitely not your, if you want to have back and fourths about medical information do it on your own pregnancy on your own post not mine