Metformin - continue or stop

KAY

I’m 9.5 weeks along. My DR said I can continue or stop taking my Metformin prescription. I take 500mg twice a day. I don’t know what to do. Such a weird thing for a DR to say especially during pregnancy.

Should I continue the rest of the first trimester?

When should I wean off?

Please share advice or stories if you’ve been in this situation.