Advice about Switching RE when pregnant

I have been seeing a specialist for a little over one year, and have been unsatisfied with the services. I planned to switch and have my first consult scheduled with the new RE for early next month. Bc my RE couldn't get it together for my second iui, my husband and I had timed sex with Letrazole this month, and I am now 4 weeks pregnant. I've had two betas and levels are rising. I've been scheduled for a third next week and my first ultrasound in June.

At what point do we stop seeing an RE and switch to an OB? Does it make sense to go through with the consult in June and still make the switch or should I just stick it out with the current doctor bc our relationship will end soon?

Any advice is appreciated. Thanks.