Can I ask a different doctor for a preconception work up

Alana • Married | TTC #3 w/ APS | Mommy to 1 girl 👧🏼 & 1 boy 👦🏼 & 3 angels 👼🏼 |
I want to see if there is something I can do to prevent another miscarriage but my OB Won't do it until I've had 3 cycles.