The first trimester (1st week to 12th week) is the most important part of the week by week pregnancy chart. It starts by the egg getting fertilized by the sperm and then it travels through the fallopian tube.
27
Dec
2012
The first trimester (1st week to 12th week) is the most important part of the week by week pregnancy chart. It starts by the egg getting fertilized by the sperm and then it travels through the fallopian tube.