Yes, it does sound as though you have problems, and the best way to start sorting them is with a visit to a doctor.
I have PCOS so I usually getmy period every 3 to 4 months. My Dr. put me on Provera tomake me get a period and then he put me on Chlomid to make me ovulate. He had me count my cycle days as if it's a normal 28 days and wants me to wait 2 weeks after my missed cycle to test.
When a dog has their "period", it is called a heat cycle. Bigger breed dogs, such as a Golden Retriever, usually do not have their first heat cycle under 12 months of age. Though 16 months old is not common, some Goldens can wait until 18 months before having their first one. Here is an article about Golden Retriever's and their heat cycle: http://www.all-about-goldens.com/canine-heat-cycle.html
No, months have no effect on your menstrual cycles.
Yes this is normal. Your period should return to a normal cycle within 3 months.
They can be bred when they have their first heat cycle which can be as early as four months but is more typically around six months. It is generally not recommended to breed a dog on it's first heat.
A period cycle is not set and stone and can change without warning, to be sure of your health you should check with your doctor. You may have a medical history you do not mention which could affect your period and body.
Maybe if your cycle been on that long or maybe because your cycle haven't been on in a couple off months that have something to do with it ..
No, it's not okay not to get your period for three months. Your menstrual cycle is a good indicator of your overall health, although irregular or abscent menstruation may be normal at certain times in your life such as during puberty, going this long without a cycle may be an indicator that something is wrong. If you go over three months without a period you should talk to your doctor to investigate the cause.
The first pill is taken on the first day of your period.
Well after 17 days it is best to go to your physician but your menstrual cycle usually starts 28 days AFTER your last period
Not being back on your normal menstrual cycle six months after having a child is normal. It usually takes a year or so for a female's body to get back into a regular cycle after childbirth. It also depends on if the mother is nursing her child. This also delays the body's cycle, and could continue to delay a woman's period for as long as she breastfeeds on demand.
usually it takes a cycle