A miscarriage cannot be prevented. You also cannot cause a miscarriage yourself, for example by lifting heavy objects or having sexual intercourse. If something goes wrong during the early development of the pregnancy, the pregnancy may end in a miscarriage.
Signs of a Miscarriage
Vaginal bleeding and/or abdominal pain are usually the first signs of a miscarriage. However, not every pregnancy that involves bleeding or abdominal pain will end in a miscarriage. Sometimes there is another (harmless) cause for these symptoms.
Once bleeding has started, it usually takes between a few days and two weeks before the miscarriage occurs. This is the case for 7 out of 10 women. For 3 out of 10 women, it takes longer than two weeks before the miscarriage occurs.
Unfortunately, it can also happen that your body does not yet show any signs of a miscarriage, but an ultrasound scan shows that the pregnancy is no longer viable. This is called a missed miscarriage. In this situation, your body has not yet recognised that something has gone wrong with the pregnancy.