The drinking of an alcoholic beverages by a pregnant woman is harmful to the development of her fetus. this is most damaging early in a pregnancy because during this time

Your baby cannot process alcohol as well as you can, and too much exposure to alcohol can seriously affect their development. Drinking alcohol, especially in the first 3 months of pregnancy, increases the risk of miscarriage, premature birth and your baby having a low birthweight.

Explanation:

after a the power stroke, adp is released, but the cross-bridge formed is still in place. atp then binds to myosin, moving the myosin to its high-energy state, releasing the myosin head from the actin active site.