Rh negative blood

Al

Okay so normally at my OB office the first appointment is 8-9 weeks in the office and you have blood tests done an everything. Well with COVID first appointments are over the phone and it doesn’t sound like they’ll be doing any blood tests until later. I know for a fact I have Rh negative blood because we did blood typing in my human phys classes in college. Should I mention that to them during my phone appointment on Friday? This is my first pregnancy but I’ve heard it can cause issues. Thank you!