If I am 6 weeks pregnant would I be able to see the baby on the ultrasound?

Yes, on transvaginal sonography the fetus can be visualized during the 6th week.
Early pregnancy. Yes, but probably only on a vaginal ultrasound, and you wouldn't see much but a nub and flickering heartbeat. If your period is irregular, you may not see that much. .
Two stories. In another question you tell us you are eight weeks. Do you even have a positive pregnancy test? There would be something in the vagina at six weeks. .