<s>[INST] Hi, im pregnant and I went for a scan yesterday, the result shows that uterus is bulky in size. Cavity contains a gestational sac corresponding with 6 weeks 5 days cyesis. There is decidual reaction. Early intrauterine cyesis. I was asked to come back after one week to access fetal viability. Im a bit worried [/INST] Hello, and I hope I can help you today. The ultrasound you had just says that you have a normal pregnancy at about 6 weeks 5 days gestation.  It is normal to not see a fetal heartbeat before seven weeks, so the doctor just wants you to come back the next week to check for the heartbeat.  So there is nothing to worry about on the ultrasound you just had, and the follow-up visit is normal if they cannot see the heartbeat yet because the pregnancy is so early. I hope I was able to answer your question today and that this information was reassuring. Best wishes, </s>