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.
The amniotic sac develops inside the uterus and it holds the growing fetus and the amniotic fluid. The amniotic fluid is there to protect the fetus and aid in its development, and over the course of the pregnancy, the fluid contents change from water from the mother to urine from the fetus.