Patient's question:
Sure, I can help with that. However, you haven't provided any content to translate. Please provide the text you want to be translated into English.Doctor's answer:
Hello, it is better not to have an ultrasound examination for more than one month of pregnancy. The pregnancy duration is calculated from the first day of the last menstrual period. You can have your first ultrasound examination at 50 days of pregnancy to check the development of the gestational sac, whether there is an embryo and primitive heart tube.