First appointment 😬

Today is my first appointment.....sounds weird being i’m 22 weeks 5 days 🤷🏾‍♀️ but i found out i was pregnant at 17 weeks and my OB office had appointments jammed packed for the longest. lucky for me the lady at the appointment desk double checked and found me a spot for today.....which was about 2-3 weeks ago . which is amazing because my date was the 27th....i don’t think i could have waited that much longer 😩. could i get some advice on what to except during my visit....i know they say it’s the longest.