Newly diagnosed RRMS. Has anyone gotten on a strong DMT with pre-existing low WBCs?

newly diagnosed with RRMS. given some medication options and meeting with doc in a few weeks to proceed with treatment. for the last decade or so I've had consistently out of range/low WBC (2.8-4.0) on my CBCs. never really had a serious infection and I saw a hematologist who mostly said it was alright but going on a strong DMT while already having low numbers makes me scared. anyone who's gone on kesimpta or ocrevus had already low white blood cell numbers and their immune system fine?