Each week of a woman’s 40 week pregnancy is marked by a number of significant changes. The following is a list of a few pregnancy week by week highlights that take place during the first 20 weeks:
Week 1: Week by week pregnancy notes the first trimester. The sex of the fetus is determined during week [...]

Carbon Monoxide (CO) is a gas that is colourless, odourless, and tasteless. CO is a by-product of burning fuel and it is an extremely poisonous gas. CO poisoning suffocates a person from within by stopping the blood from absorbing oxygen. If someone is exposed to high levels of CO, the result can be brain [...]