11 month old drops a nap?

Hi ,is it possible that my 11 month old is trying to drop a nap?I read this should happen a lot later..

Her sleeping pattern although perfect before..is now all over the place..daytime she mostly has one nap 30 min to 1h40 min ,rarely she will have a second nap nightime she wakes up2-3times (she used to sleep all night without waking up)