Other?
An abdominal infection with Chlamydia is often not felt by the woman, but can cause involuntary childlessness. Therefore, the doctor routinely performs an examination for infection with chlamydia. This is done by leading a swab up into the woman’s cervical canal and sometimes also into the urethra. The examination is painless.
It can be harmful for the foetus, if a pregnant woman has German measles. Therefore, the doctor takes a blood sample, by routine, to see if the woman has had the illness – and therefore, cannot get it again. It would be unsuitable, if the woman after lengthy treatment has become pregnant, and then has German measles that she could have been vaccinated for.
Whether the general practitioner has found an explanation from the examinations above or not, he will at the present time refer you to either closer examinations or to an actual treatment of the childlessness.