That would trend to zero at menopause. Up to that time, you would have as good a chance as not at getting pregnant although the probability of birth defects does rise with age. Visit this site for more detailed answers: http://www.babycentre.co.uk/pregnancy/antenatalhealth/ageandpregnancy/#4
its the same as if you were younger.... just keep trying
I don't think she is pregnant because she is 49 years old. It is very difficult to conceive when you are over 40.
Some are. An average pregnancy is 40 weeks and some women go over.
About half of women over 40 have fertility problems, according to the American Society for Reproductive Medicine (ASRM).
40
A womens body goes through many changes over the 40 weeks of pregnancy. I have added a link that breaks down each of the weeks starting at week 40.
Yes, if she is fertile.
You have probably a 10%-25% chance every month to become pregnant (without knowing if you are in your late or early 30's), while a woman under 30 had about a 25%-30% of becoming pregnant each month. A woman over 40 has about a 10% chance.
Yes, they can, but as a woman gets older, it becomes harder to get pregnant, but that's around 60 years old, so a 40 year old woman could get pregnant.
40 weeks
About half of women over 40 have fertility problems, according to the American Society for Reproductive Medicine (ASRM).
If the baby was born at 40 weeks (full term) you got pregnant in August. Count backwards on a calendar 40 weeks from the babies Birthday.