Went in for a U/S today at 5w5d. Managed to see the gestational sac and nothing else. Sac was measuring exactly 5w5d. Have seen some people being able to see fetal pole n yoke sac at 5w5d. Next appt would be Wed where i'll be 6w4d. Do i need to be worried? So far no bleeding. There's some sort of symptoms like on and off tender boobs, bloating and gassy, mild nausea?