Beta blockers and 24hr Urine collection

So I had my appointment yesterday. I'm 24 wks 4 days. My BP was 164/84. They took it again after a while and it was 155/85.

Because of this they took some labs, prescribed a beta blocker(😳), and ordered that I collect my urine for 24 hours.

I have an appointment next Thursday to go get my bp checked and to do more bloodwork.

My BP has never been so high. I am freaking out. Anyone been through this before? Are there any indicators of preeclampsia that doesn't come with just regular hypertension?