Hi, iam 29 with one child.i've been in 3 months injection femiplan.I stopped using the injection now going to two months.I haven't had my menstrual upto now.Kindly advice,is it normal,and for how long does it take be appearing,if not what should i do.lastly should i take pills for 21 days to activate my menstrual cycle as my friends have been advising? Thax for quick response.