Sounds as a reasonable time to me.
Not so sure about the meaning of the classification of your fracture, anyway, usually ankle fractures are stabilised in roughly 6-7 weeks but here you had also a ligament problem and that can take from a minimum of 3 weeks up to 4-6 months depending about how bad the situation was (sounds like yours wasn't too nasty). A lot will depend from the rehab too.

Work hard during the rehab and you may gain a couple of weeks!

All the best