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Intercourse
A person has intercourse. -
Week 12 (END OF FIRST TRIMESTER)
Your baby's brain continues to develop, and tiny fingernails and toenails start to form. The greater blood volume brings more blood to the blood vessels and the hormones increase oil gland secretion, making skin look flushed, plumper, and smoother. -
Week 13 (START OF SECOND TRIMESTER)
Your placenta has developed and is providing your baby with oxygen, nutrients, and waste disposal. The placenta also makes the hormones progesterone and estrogen, which help to maintain the pregnancy. Eating a healthy diet, ensures your baby gets needed vitamins and minerals, such as folic acid, zinc, iron, and calcium, which aid growth and development. -
Week 19 (MIDDLE OF SECOND TRIMESTER)
Your baby is now covered with a white, waxy substance called vernix caseosa, Watch Your Baby Growwhich helps prevent delicate skin from becoming chapped or scratched. Baby's first movements often happen between weeks 18 and 20. -
Week 26 (THE END OF THE SECOND TRIMESTER)
Your baby's eyes have been sealed shut for the last few months but they will soon open and begin to blink. Your baby, weighing a little less than 2 pounds (907 grams), still looks wrinkly but will continue to gain weight steadily over the next 14 weeks until birth. -
Week 27 (START OF THIRD TRIMESTER)
By this first week of the third trimester, your baby looks similar to what he or she will look like at birth, just thinner and smaller. The lungs, liver, and immune system still need to fully mature, but if born now, your baby would have a very good chance of surviving. As hearing develops the child may begin to recognize your voice! -
Week 33 (MIDDLE OF THIRD TRIMESTER)
In these last few weeks before delivery, the billions of developed neurons in your baby's brain are helping him or her to learn about the environment. Your baby can listen, feel, and even see somewhat. -
Week 40 (END OF THIRD TRIMESTER)
Most women don't deliver right on their estimated due dates. Don't expect your baby to look picture perfect right away, though. A newborn's head often is temporarily misshapen from the birth canal and may be covered with vernix and blood. Your baby's skin might have discolorations, dry patches, and rashes. This is all completely normal.