This is my first baby so I got an ultrasound really early, around 8 weeks. Just to believe there was really a baby in there. Everything was nomal then. I am not so sure I want a 20 week untrasound though. I am willing to get one (or maybe 2 if really necessary) more ultrasounds this pregnancy. Should I wait until later when the baby is better developed? If I only get one more ultrasound when should I have it done?