Congratulations on your pregnancy!
It's normal to kind of be unsure how far along you really are in the early stages, a lot of the people we see and get ultrasounds also are around 4-6.5 weeks just because they are unsure when they had their LMP and the sac looks so tiny it's hard to tell how far along peple really are
but looks like your doing well,s o just keep it up and hoping for a happy and healthy 9 months of pregnancy for you!
enjoy it! i sure am my 2nd time around