Lifestyle and home remedies. Over-the-counter medications â such as acetaminophen (Tylenol, others), ibuprofen (Advil, Motrin IB, others) and naproxen (Aleve, others) â may help ease knee pain.
What a difference a week makes! This week, a sonographer can see your baby via ultrasound as a tiny white image tucked within the gestational sac. And his heart is beating! For these first few weeks in your baby-to-be's development, he'll be nourished by the yolk sac. The yolk sac provides all the nutrients the embryo needs and produces blood cells until the placenta fully forms later in the pregnancy.
Second, the fetusâs detoxification and immune systems are still immature, unable to clear drugs and other chemicals from its system as effectively as the body of an adult. And third, the fetus is developing so rapidly that even a small disruption induced by a chemical can have far-reaching effects. Science is still sifting through the fallout from its belated recognition of the risks posed by thalidomide, DES (Diethylstilbestrol), and alcohol.