PREGNANCY REPRODUCTION SEXUAL INTERCOURS E The reproductive process

PREGNANCY & REPRODUCTION

SEXUAL INTERCOURS E The reproductive process in which the penis is inserted into the vagina and through which a new human life may begin

Stages of Reproduction Fertilization~ Joining of an egg and a sperm in the fallopian tube

Embryo: A fertilized egg in the first 2 months Fetus: From the 3 rd month on the embryo is called a fetus.

Stages of Birth: 1. Labor – mild contractions pushes the baby against the cervix 2. Birth – Baby pushes through the cervix and into the birth canal. 3. After birth – After the baby is delivered,

BABY DEVELOPMENT

First 3 Months FIRST TRIMESTER • • 4 th Week Heart starts beating Arm and leg buds appear Eyes and brain begin to develop Embryo is less than ¼ of an inch long Umbilical Cord Connects the embryo to the placenta Start of the 8 th week Developing human is called a fetus Brain waves can be detected Muscle movements begin Bones and muscles are developing All major body parts have formed

SECOND TRIMESTER Months 4 -6 • Organ systems continue to develop • By 4 months – mother can feel the fetus move or “kick” • Reproductive organs can be recognized as distinctly male or female • Fetus can hear and recognize voices • Hair forms on the head

THIRD TRIMESTER Months 7 -9 • Time when the fetus gains most of its weight • Most fetuses are about 20 inches • Brain develops further • All other organs are almost complete • Fetus can grasp with his/her hands • Fetus’s skin becomes smooth – fat deposits underneath the skin • Nervous system will continue to develop after birth