Couples should be aware that there is a one in five chance that they will become pregnant naturally after having an IVF baby, which is quite high.
They claim the information is either important information about contraception or news that may inspire new hope for family planning.
In order to determine how widespread it was, they analyzed data from more than 5,000 women.
Since the results are averages, there are varying odds for different people.
The NHS estimates that if a couple has been trying for a few years, their chances of becoming pregnant naturally within the next year are one in four or less.
Usually, infertility is not recognized until a couple has tried for a year to get pregnant without success.
The recommendation is for women over 35 and anyone who is already aware they may have fertility issues to visit their doctor sooner because female fertility declines with age.
Both partners may experience infertility issues, which may be permanent or intermittent. There are many treatable causes, but for one in four couples, it might be impossible to identify the root of the problem.
The NHS does not always cover the cost of fertility treatments like in-vitro fertilization (IVF).
IVF treatment cycles can cost up to £5,000 or more.
Shema Tariq, a London resident, was informed that she had a "low ovarian reserve," or fewer eggs left, and that her chances of getting pregnant naturally were next to nothing. .
Her son was born in 2018, and conception required six IVF cycles. .
After he was born, my doctor mentioned contraception to me very briefly. We both laughed and decided it wasn't important, Shema says.
Despite being a doctor who specializes in sexual health, "I never thought that I might become pregnant.
"At 43, my chances of getting pregnant naturally were less than 1%, according to the doctor.
"Eight months later, I discovered I was naturally and unexpectedly pregnant with our daughter. .
She has been the best surprise, but when we first learned of the pregnancy, I felt uneasy and unprepared. .
"If I had known that one in five women who undergo IVF conceive naturally, I would have postponed using contraception until I was emotionally and physically prepared. ".
"Our findings suggest that natural pregnancy after having a baby by IVF is far from rare," said Dr. Annette Thwaites, lead author of the new study, which was published in the journal Human Reproduction.
This runs counter to the widely held beliefs that it is a highly unlikely event, which are frequently expressed in the media and among women and health professionals. ".
In the 11 international studies her team examined, it was discovered that at least one in five women later became pregnant naturally, most frequently within three years of having a child through fertility treatment. And this held true for all varieties and results of in vitro fertilization.
The British Fertility Society's clinical embryologist Dr. Marta Jansa Perez stated, "This study emphasizes the importance of providing patients with accurate information about their chances of conception at any point, particularly after giving birth to an IVF baby.
"It is encouraging that so many patients can conceive naturally after IVF, but people should be aware that it would be wise to seek treatment for a second child as soon as possible in cases where the woman's age or severe male factor infertility played a role in the initial inability to conceive.
. "
