clomid no period yet

Before taking clomid my period will always come every month around the 16-19 ...well I finish my first round of clomid and it's November 27 and no period last period was October 19 what is going on?? Lots of cramps but it's mild bfn as well ??? Those clomid push your cycle further way?? So confused 😐 I have pcos but I get periods every month I do ovulate it's just my eggs don't get mature enough :/