Naturalisation as a spouse of a UK citizen - Tricky questions

[Blinxy]

Hi,

I am a non-EU spouse of an EEA national. I've been in the UK since 2014 and entered with an EEA Family Permit.
My husband has been in the UK for 6 years and has applied and acquired a PR. (a blue document that states that he has his permanent residence in the UK ).
He can apply for British citizenship in December 2018 and he's going to start the process soon.

Where it's getting more complicated is I am going to apply for French citizenship by marriage as we've been married for 5 years now and have a baby together. The application is going to be in March 2019 and I'll get a response in 6 to 12 months but this is 99.99% going to be positive. I'll be a French citizen by March 2020.

My EEA PR is expiring in 2021.

How can I apply for British citizenship? Do I wait until my husband get his citizenship and apply as a spouse of a british citizen?
Do I try to get IRL after my PR expires ?( I will no longer be a non-EU spouse of an EEA national as I am going to acquire French citizenship)

Thanks for helping me understand the route as I am a bit confuse and the regulation rules are not clear on that.