Fiancee visa to spouse visa

hi would appreciate your help

i am in a limbo here

I was going through divorce in uk and before i got he decree nisi i got married in pakistan.
i then applied for fiancee visa to bring my mrs here .
i had a child with her. (baby girl is british).
now i am trying to register our marriage but it has got mandatory 29 days notice which i doint have .
what are my options ?
1- change marriage date on marriage registration certificate in pakistan (date after the fiance visa was issueed) ?
2- extend fiancee visa and then get registered here in uk?
3- anything else please ?

You cannot extend a fiance visa. The whole purpose of the fiance visa is to get married in the UK within the 6 months validity. Why have you waited so long to apply to the registry to marry?? Your previous posts suggest the fiance visa was issued Aug/Sept last year.

Have you got your divorce decree absolute and if yes, when did you get it and what date is it?