how soon should I go in to see my O/B ?

Alexus • mommy of a girl👶🏽💕, boy 👶🏽💙twin angles 👼🏾👼🏾and 🌈🌈my rainbow baby boy is my ❤️ surprise baby boy💙 and my Jamaican prince🇯🇲 happily married with twin boys💙💙
Hi ladies ! I'm currently 4 wks and 3 days pregnant , at least that's what my <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> saids . Lol And I went in to the doctor about a week or 2 ago to confirm it . But they told me I need to wait until I'm further along to talk to my O/B (basically to get an ultrasound ) . And to see how far along a Actually am . Are they right ? Is it to early to tell what's going on ? Or should I just go in ?? 🤔🤔🤔🤔🤔🤔 please tell me .