Fetal Development Guide: Heartbeat, Size & Trimester Tips

Fetal growth follows a precise timeline, from the first heartbeat to the final stages of brain development. Proper nutrition delivered through the placenta is vital for maintaining healthy fetal weight and overall wellness.

Pregnant belly

Pregnancy at 37 Weeks

At 37 weeks, a pregnancy is full term--if the baby is born now, it will not be premature. Ideally, however, the pregnancy will continue until 40 weeks. This final stage of the pregnancy may be difficult. The cumulative weight gain may make the mother uncomfortable, even while sitting or lying down.

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Hispanic girl hugging pregnant mother

Aches & Pains at 28 Weeks Pregnancy

The 28th week marks the beginning of the third trimester of pregnancy. Physical and emotional aches and pains are normal and common. As weight gain approaches its peak, women may find it difficult to get comfortable, even while lying down.

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