Oct.3rd was the last time I had entercourse , I was expecting my period on Oct.16 it didn't come until the 22nd. It wasn't heavy like usual it was lighter, then in November I was expecting it come on the 12th it came on the 27th ..... So then in December I was expecting to come on the 9th it never came so on the 11th and the 22nd I notice spotting after I wipe and nothing after that .... And now its Jan 2nd and still no period .... Any suggestions on what might be going on and what should I do?