One of your eggs broke out of its follicle and has been swept into the fallopian tube. The sperm has to "swim" from your vagina to your uterus into the fallopian tube to fertelize the egg.
Your baby is now a small ball of several hundred cells that are rapidly multiplying. The ball is called a blastocyst.
The blastocyst has started burrowing into the uterine lining.
Your baby is now an embryo. (the size of a seed)
Your baby is now the size of a sesame seed.
In your babys little mouth it's tongue and vocal cords are beginning to form.
Your baby has tiny hands shaped like paddles with thick webbing between the fingers which are still developing.
Your baby has tiny feet shaped like paddles with thick webbing between the toes which are still developing.
Your babys heart is beating almost twice as fast as yours, and your babys heart is beginning to divide into left/right chambers.
Your baby now has eyelid folds which now partially cover it's eyes.
Your babys growing intestines are looped in the umbilical cord.
Your baby has extension of its tailbone (which looks like a tail)
The cells in your babys brain are branching out to form primitive neural pathways.
Translucent eyelids are practically covering your babys eyes
Your babys hands are flexed at the wrists and meet together over the heart, and it''s fingers are slighlty webbed still but growing longer.
Your baby now has knees and it's feet may be long enough that they meet in front of its body.
Your babys eyelids are fused shut, they won't open until week 27.
Your baby now has earlobes.
Your babys finger tips are slightly enlarged where it's "touch pads" will develop.
Your baby can now move its limbs.
Your babys liver is now making blood cells.
Your babys fingers are completly seperated now and are growing fingernails.
Your babys forehead is bulging with the brain which is sitting high.
Your babys bones are beginning to harden and toothbuds are starting to appear under their gum.
Your babys skin is still transparent.
Your baby may soon be able to open and close their fist.
Your babys eyelids are less transparent and its eyes have moved closer together.
Your babys intestines that have grown so rapidly that thye went into the umbilical cord are now protruding into the abdomen.
Your babys ears are closer to their final position on its head.
Your babys urinary tract is now functioning.
Your babys head is now more proportional.
Your baby has its only set of finger prints.
Your baby can now squint, frown and grimace.
Your baby is starting to develop an ultra-fine downy layer of hair all over its body.
Your babys arms have lengthened.
Your baby can now move his joints and limbs.
Your baby is inhaling and exhaling amniotic fluids which will help develops its lungs.
Your babys eyelids are fused shut yet it can still sense light.
Your babys scalp pattern is starting to develop although it hasn't started growing hair yet.
Your baby has started growing toenails
Your babys circulatory system is now working and its heart is pumping about 25 quarts of blood a day.
Your babys skeleton is turning from rubbery cartilage to hardening bone.
Your babys sense of hearing is developing.
Your umbilical cord is growing stronger and thicker.
Your baby is flexing her arms and legs.
Your babys blood vessels are visible through its skin.
Your baby is designating specialized areas for its senses. Taste, touch, smell, vision, hearing.
Your baby now has hair sprouting on its scalp.
Meconium is accumulating in your babys bowels and this will show up in your babys first dirty diaper.
Your babys skin is coated in a greasy white substance which protects its skin while its submerged in the amniotic fluid for such a long time.
Your babys eyelids/eyebrows are fully developed now.
Your babys lips are more distinct and there are little toothbuds beneath the gum line.
Your babys eyelids are still fused shut and beneath them its eyes are developed but they still lack the pigment.
Your babys skin is red and wrinkled.
The loud noises your baby hears now probably won't bother it after birth.
Your baby is developing its tastebuds.
Your baby is developing "branches" in the respiratory "tree" and also cells which produce surfactants which is a substance which helps the air sacs inflate easily.
Your baby is starting to get baby fat and its skin will smooth out and it will look more like a newborn.
Your babys hair now has a recognizable color and texture.
If you are having a boy your babys testicles are now starting to descend into his scrotum which will take 2-3 days.
Your babys nerve pathways in its ears are starting to develop so its response to sound it more consistant.
Your baby may suck its fingers and you also may feel it get the hiccups.
Your baby can now open and close its eyes.
Your baby has eyelashes and will turn its head towards a continuous bright light.
Layers of fat begin to form as your baby gets ready for the life outside the womb.
Your babys skeleton is now hardening and recieces about 200 milligrams of calcium every day.
Your babys head is growing bigger so it can accomodate its brain.
Your baby can tell the difference between light and dark, when its born its vision will be about 20/400 which means it can only see things a couple inches from its face.
Your baby is developing fat under its skin which will fill out its arms, legs and torso.
Your babys fingernails and toenails have grown in.
Your babys skull is not quite joined which will help it come out of your relativley narrow birth canal.
Your babys lungs are now well developed.
Within the next few weeks your baby will be putting on an ounce a day.
By now your baby is probably in an upside down position and its head dropping down into your pelvis.
Your baby is now shedding most of its downy hair and some of the greasy white substance on its skin.
Your baby may have a full head of hair by now but some babys only have peach fuzz.
Your baby now has a firm grasp.
Your babys outer layers of skin are coming off as new skin forms underneath.
Your baby is still developing layers of fat to help it control its body temperature when it is born.
Your babys skull bones are sepreated so they can compress enough to fit through the birth canal. Your baby will have soft spots during its first year or maybe more after birth.
Your babys hair and nails are growing everyday.