Stuck on the 18th floor😩 what should I do?

So we live on the 18th floor of a condo building. Yesterday our elevator generator broke down and all three elevators have been out of service. So in order to leave the building, I have to take the stairs. I’m 24 weeks pregnant, we have a dog that requires a few walks a day and I have appointments today I have to get to. So I need to be up and down the 18 flights of stairs at least three times.

Is it a risk to be taking all those stairs? (My fiancé thinks so, and I’m not sure) I’m moderately active and not high risk, but have suffered a MC in the past. I’ll most likely give my midwife a call and see what she thinks, but I was wondering if you ladies have any thoughts or have had to take many flights of stairs while in your second trimester?

Thanks!