Is it 3 months to redeem or 90 days?

Hi I ordered my exchange order earlier this week and after a email asking to confirm when I was going to activate it and asking if I wanted to delay processing it by a week (which I said I was fine with) after confirming and saying it would be fine to delay it I got a response back saying my order would be processed. So I got the exchange order with a date of November 7th for a arrival and activation date of February 4th. My question is is it 90 days from the 7th which would put me at the mercy of everything being 100% on time since it would hit right at the 4th (flight scheduled to land 16:40) or is it 3 months to the day ie February 7th? I ordered early so I didn't forget and the system told me it wouldn't be processed until the 16th which I mentioned in the email. Kind of freaking out right now.