Tomorrow I will be considered 4 weeks Pregnant.How Big is the Baby at Four Weeks Pregnant?
Your baby at 4 weeks pregnant is still incredibly miniscule, about .014 to .04 inches long. That is roughly the equivalent to 1/2 to 1mm long, which isn't very long at all. Your baby will slowly start changing by 4 weeks pregnant so that he or she starts resembling more like a small tadpole with eyes than an egg. That is quite an accomplishment for your little one!
Your Baby's Growth and Development
Your baby will be implanting furiously during pregnancy week 4 into the uterine lining, to ensure that he or she has a safe and secure home for the next nine months. Fetal development by and large is still in the earliest stages at this point. By now the blastocyst or ball of cells that is your baby will be imbedding deeper and deeper into the lining of the uterus. The amniotic cavity is forming and the placenta is starting to form.