Assuming you already sent a letter of intent, I would send an update later now if you haven’t recently. Update about any clinical/volunteer/research you’re doing and say that the school is still your first choice/that you will definitely go if accepted. If you do this via portal, I’d consider posting on portal and then emailing to let them know that you did that. Tbh I’m not sure they’d care that you have a masters deadline coming up, there will always be another person on the WL for them to take and other ppl may be in the same situation with moving for other MD/DO programs while still waiting for this school if it’s their first choice. Moreso I’d emphasize how much you wanna go there, not bc you have a deadline to meet