nothing has ever suggested that ultrasounds are harmful. they just use high frequency sound waves to create the image not radiation like an x-ray would. when you're about 18 weeks along the doctor will perform another ultra-sound because at that time the baby's major organs start to develop so go see that doctor. best wishes.
is it bad to have a lot of pregnancy ultrasounds? . i had an ultrasound at 10 weeks because i hadn't told anyone about my pregnancy i had another one at 12 weeks. i am now 16 weeks and i haven't seen the doctor because we keep pushing the appointment back. i have an appointment next week and i just wanted to see if it would hurt to get another one just to make sure the baby is okay