How much weight should a woman expect to gain in the first trimester?

During the first trimester of pregnancy, it is generally recommended that a woman should expect to gain approximately 1 to 4 pounds total, which aligns with the expectation of gaining around 1 pound a month. This gradual weight gain is important for the health of both the mother and the developing fetus, as it reflects initial changes in the body and the growth of the placenta and other tissues.

Weight gain typically becomes more pronounced during the second and third trimesters, where the caloric needs increase more significantly. The first trimester is primarily characterized by adjustments happening in the body rather than rapid weight gain. Thus, the recommendation of approximately 1 pound a month is consistent with guidelines provided by health organizations regarding healthy pregnancy weight gain.