What causes a 40-year-old to have a period every two to three weeks for three to four months?

No, she can only get her period every 6 months.

female dogs get their period every 6 months.

ushally every 8 months

Every six months for one month

Dogs will get their period or come into Heat every 6 months. Starts around 8 months old to 12 months old. Then, will last at least 21 days - Every 6 months. HOPE this helps Marie Peppers Ask the Pet Nurse ...

yes you still will get your period on the pill. some pills you get your period every month and there are some pills that you have your period every three months. just talk to your doctor about what is right for you. ...

see your doctor if that happens....

if you take birth control you will only have it every couple of months, but there is really no way to ever get rid of your period. ...

Depo Provera, it's a shot every 3 months.

About a 3 week period every six months.

It is common to experience changes in your menstrual cycle. Stress and hormonal changes can effect your cycle. Schedule a visit with your physician to make sure there are no other causes. ...

Yes. There are now birth control pills that regulate a period to one every three months. ...

No it is fine to only get your period every few months. It is normal everybody is different it depends on your genes. If you have a problem you should go see your doctor but any other way it's NORMAL. ...

It probably means you are only ovulating every 3 months. If you are planning on getting pregnant any time soon, you should probably talk to your Dr. ...

It can if it is irregular, but for many it will stay relatively the same.

I am pretty sure it's every 6 months but sometimes they can skip one.

they go into heat every four months for a whole month

I know someone who just turned 59, and she gets her period once every five months. ...

Once every 11 to 12 months, accounting for the period of rest a cow gets after being bred (which will last from 2 to 3 months), and the gestation period for that cow after she has conceived. ...

It's just your hormones are different. My beset friend gets it every three months but saw a gynecologist to get on birth control so its more regular. I think the only disadvantage to this is that you may have trouble getting pregnant in the future. ...

Every six months, usually lasting for around 2 weeks.

dogs are actually infertile and dont get there period until after relations ...

No. Your period is a result of the hormones in your body. Food does not stop it. Newer birth control pills will delay a period for 3 months, but you still have one every 3 months. The hormones that your body produces are needed and when you get older they get less. This is called menopause. ...

Yes, you can. I actually had a period for several months even though I was pregnant. I kept thinking, man I am working out every day, why am I getting fat! Sure enough, I was 4 months pregnant! ...

You don't. A period is produced by the hormones in your body. These are the same hormones that give you breasts and the other things of womanhood. There are newer birth control pills that will delay a period for 3 months, but you do have a period every 3 months while on them. You need these hormones and when you get older they get less. This is called menopause. ...