first prenatal appt

So this is my 4th pregnancy! no baby yet...2nd and 3rd Dr told me to schedule as soon as i know i missed period so they can give me ultrasound scan every week! i felt like it was too much, because i went in at 4 wks obviously i didnt see anything beside an empty sac, i felt like it was a waste of time to look and then go oh nothing yet come back in a wk. Then 5th weeks they said oh i see baby but no heardbeat yet. it got me worried even more... then come back 6th wk i got to see heartbeat. I feel like it stresses me out a lot to keep waiting whats going on next wk? so this time i decide not to schedule early, i schedule 8 wk like a everyone else. what is your opinion on this? would you wanna check every week? or wait like me. what is worse case to you?