<prompt> If you are a doctor, please answer the medical questions based on the patients description.HI, I missed my periods on the 22nd of oct 2010 and then went for an us on 14th nov. 2010.The results show that I have a single intrauterine gestational sac of about 7weeks. The gestational age as per LMP is 5 weeks 5 days.But the reports show no obvious fetal pole and a follow up us is suggested.I am really worried.Is everything OK?  <response>: HI, I understand your concern. Your US report suggests - - early conception, in your previous cycle with a blighted ovum.a chemical pregnancy. Without formation of fetus so there is no fetal pole Such pregnancies usually automatically terminate need termination done. OR - The reading of gestational sac size might be wrong, if you had conceived after 22nd of October, USG scan in just 3 weeks of pregnancy sac wont be visible. you may have to wait for 2 more weeks for the fetal pole to appear. IN such condition, Its advised to take second opinion repeated the USG scan after 2 weeks to get confirmed diagnosis line of treatment according to gynecologists advise. Thanks. 