Exactly 6 weeks pregnant. still no morning sickness! should i be worried?

Varies greatly!: Some women have morning sickness so severe they must be hospitalized. Other women have none at all! I wouldn't be surprised if you are having other symptoms, like fatigue or breast tenderness. But any worry can be addressed by having a pelvic ultrasound. Generally, a pregnancy is visible on ultrasound by six weeks. Talk with your health care provider, and get some reassurance. Good luck. LGromkoMD