Schedule of Appointments?

So

Does anyone know around which weeks I should be seeing my OB? The first one was between 7-8 weeks, & I went in at 8+5. Then she said come in three weeks later, so I’ll be there 06/19 when I’m (🤞🏼) 11+5. I will ask at the appt but I thought I’d check if someone knew around which weeks the next ones should be scheduled? I know it can vary - I live in CA, not sure if that makes a difference. I’ve heard towards the very end you could go in each week. Any help is appreciated!