This free monthly calendar tracks your cycle in a very quick and simple way. All you have to do is type in the date of your respective last period and the calendar does the remainder. Everything is color coded for simple viewing. Green displays fertile days, blue may be the present day, and red occurs when you are expected to get a period. This is all based on the cycle length and the date of the first period which you entered. One must not delay in consulting any qualified infertility specialist if the result of unsecured sex does not show any hope of pregnancy. Those are below 35 years can try it for one year but the couples above 35 years must not wait for more than six months as an age factor can also prove a hurdle towards achieving the desired outcome.     It most often develops in adults over the age of 40. It is also more common in women and in people with a family history. However, it can occur at any age due to injury or other joint-related diseases such as gout or rheumatoid arthritis.