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Do you have an infertility problem? When to start worrying!
by Dr. Aniruddha Malpani, MD and Dr. Anjali Malpani, MD.
What are the chances of a normal fertile couple conceiving in one month ?
What is primary infertility ? What is secondary infertility
What are the factors which affect the chances of a normal couple getting pregnant in one month ?
What are the factors which affect the chances of an infertile couple getting pregnant in one month ?
When should you start worrying and seek medical advice?
"So, when are you planning to have a baby?" This is the commonest question most newly married couples in India are asked - sometimes even as soon as they have returned from the honeymoon! There is a lot of pressure on couples to have a baby, especially in traditional families, where the wife's role is still seen to be one of perpetuating the family name by producing heirs.
Many couples still naively expect they will get pregnant the very first month they try (the result of watching too many Hindi films, perhaps!) - and are concerned when a pregnancy does not occur. All of us go through a brief interlude of doubt and concern when we do not achieve pregnancy the very first month we try - and we start wondering about our fertility.
Before worrying, remember that in a single menstrual cycle, the chance of a perfectly normal couple achieving a successful pregnancy is only about 25%, even if they have sex every single day. This is called their fecundity which describes their fertility potential. Humans are not very efficient at producing babies!
There are many reasons for this, including the fact that some eggs don't fertilize and that some of the fertilized eggs ( embryos) don't grow well in the early developmental stage because of a random genetic error.
Getting pregnant is a game of odds - it's a bit like playing Russian Roulette and it's impossible to predict when an individual couple will get pregnant! However, over a period of a year, the chance of a successful pregnancy is between 80 and 90%, so that 7 out of 8 couples will be pregnant within a year. These are the normal "fertile" couples - and the rest are "labeled" infertile - the medical text book definition of infertility being the inability to conceive even after trying for a year.
Couples who have never had a child, are said to have "primary infertility", while those who have become pregnant at least once but are unable to conceive again, are said to have "secondary infertility."
The approach to both types of infertility is very similar. However, patients with secondary infertility have a better prognosis, because they have proven their fertility in the past.
The chances of pregnancy for a couple in a given month will depend upon many things, and the most important of these are:
What happens when a couple has a fertility problem? The chances of their getting pregnant depends upon a number of variables multiplied together.
Consider a couple where both the husband and wife have a condition that impairs their fertility. For example, the husband's fertility, based on a reduced sperm count is 50 percent of normal values. His wife ovulates only in 50 percent of cycles; and one of her fallopian tubes is blocked. With three relative infertility factors, their chance of conception is 0.5 (sperm count) X 0.5 (ovulation factor) X 0.5 (tubal factor) = 0.125, or 12.5 percent of normal.
Since the chance of conception in normal fertile couples is only 25% in any one cycle, the probability of pregnancy in any given month for this couple without treatment is only 3 percent (0.125 X 25 = 0.03125)! Even if they kept on trying for 5 years, their chance of conceiving on their own would be 60% only.
Thus, infertility problems multiply together and magnify the odds against a couple achieving a pregnancy. This is why it is important to correct or improve each partner's contributing infertility factors as much as possible in order to maximize the chances of conception.
If infertile couples had 300 years in which to breed, most wives would get pregnant without any treatment at all! Of course, time is at a premium, so the odds need to be improved - and this is where medical treatment comes in.
If you have been having sexual intercourse two or three times a week at about the time of ovulation, without any form of birth control for a year or more and are not pregnant, you meet the definition of being infertile. Pregnancy may still occur spontaneously, but from a statistical point of view, the chances are decreasing and you may now want to start thinking about seeking medical help. There is no "right" time to do so - and if it is causing you anxiety and worry, then you should consult a doctor. Even though you may be embarrassed and feel that you are the only ones in the world with the problem, you are not alone. Many couples experience infertility and many can be helped.
Unfortunately, while infertility is always an important problem, it is usually never an urgent one. This often means that couples keep on putting off going to the doctor. "We'll take care of it next month". Tragically, many find that time flies, and before they realize it, their chances of getting pregnant have started to decline, even before they have had a chance to take treatment properly. Set your priorities, so that you have peace of mind that you tried your best. After all, if you don't take care of your own infertility problem, who will ? Kicking yourself when you are 50 years old for failing to take treatment when you were younger will not help. Remember that everything in life comes back, except for time!
There are certain conditions that warrant seeing a doctor sooner: