didn't get my period

Gene • happily married sometimes friendly and sometimes not a mother of 4 work and love what i do.

so hello girls i know that you all don't know me,but I have not gotten my period at all the last time i had a period was October 14th it last for 5 days 28 day cycle. now my period was suppose to come on the 12th today is the 16th it never came on I've been sick on and off i even had implantation and it stopped.I'm nervous should i take a pregnancy test?