First Ultrasound - 6w5d

Had my first ob appointment and ultrasound today. According to the app, I should be 8 weeks, but I do have a history of irregular periods.

Little bean measured in at 6 weeks 5 days with a heartbeat of 146!

Any guesses? I’ve been saying boy and named it Julian since I found out two weeks ago. Anyone else feel that way about their pregnancy/ies? Were you right or wrong?! How embarrassing if it turns out to be wrong. 🤣 my first pregnancy and hopeful for the best outcome. Not necessarily planned but husband and I are very grateful. Given the all okay from ob. Major symptoms include heartburn and random fatigue.