Congratulations! You?re at the very beginning of the roller-coaster ride of pregnancy. It’s a time for all kinds of changes?big and small, thrilling and weird?and plenty of questions, too. Here?s what to keep in mind as you move through the first trimester.
When does the first trimester start" When does it end"
Pregnancy math can be a little strange: The start of your pregnancy is calculated starting on the first date of your last period, not when conception or implantation happened. In other words, if you had your period four weeks ago, then ovulated and had sex two weeks ago, you?re four weeks pregnant. There are a number of different ways to figure out your due date, too.
The first trimester lasts until the final day of week 12. What are some of the pregnancy symptoms in the first trimester"
First-trimester symptoms are the subject of many jokes and plot twists in TV shows and movies, but every woman has her own experience in real life. You may have some, all or none of these symptoms, and that?s just fine.
Bleeding and cramps
Some women have light spotting (pinkish, reddish or brownish spots on toilet paper or underwear) or mild, menstrual-like cramps in the early days around week three (five to 12 days after conception). This is called implantation bleeding because the embryo that will become your baby is burrowing into the lining of your uterus. The spotting can last a day or several days.  Mild stomach cramps (often described as a slight tugging...