Final answer:
The risk of miscarriage significantly decreases at the end of the first trimester and continues to decrease throughout the second trimester of pregnancy.
Explanation:
The risk of miscarriage significantly decreases as a pregnancy progresses. The point at which the risk of miscarriage decreases is around week 12 or the end of the first trimester, as the fetus becomes more developed and the placenta fully forms, providing more stability and support to the pregnancy.
After the first trimester, the likelihood of miscarriage decreases further, with weeks 13 to 20 considered a lower risk period. By the second trimester (weeks 13-28), the risk significantly drops, as the fetus becomes more viable and better equipped to survive outside the womb.
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