Not like an abdominal ultrasound, a transvaginal scan is executed when the ultrasound wand is inserted in to the vaginal canal in order to get pics from inside. Now, nobody is saying to whip out a protractor to determine the precise angle here, but certainly this is where nub theory https://zandereqziq.prublogger.com/27783678/5-easy-facts-about-ramzi-theory-pregnancy-described