What are the stages of pregnancy?

Answer 1

First trimester: 1-12 weeks of pregnancy

Second trimester: 13-27 weeks of pregnancy

Third trimester: 28-40+ weeks of pregnancy
There are three stages of pregnancy which are divided into trimesters. The first trimester covers week 1 to week 12, the second trimester covers week 13 to week 28 and the final trimester covers week 29 to week 40.

Answer 2

I'm not exactly certain what you are asking, but I believe there is a type of pregnancy called "etopic pregnancy", in which the fertilized egg has implanted itself in one of the fallopian tubes, instead of the uterus. There is also twin pregnancy, in which the woman is pregnant with twins (or triplets, etc.). Early or premature pregnancy could be considered a "type", but it is usually the result of other problems in the pregnancy.

Answer 3

Identical twins, fraternal twins and semi- indentical