AP BIOLOGY

Detailed explanation-1: -The main purpose of the luteal phase is to prepare your uterus for a possible pregnancy. During this phase of your cycle, an egg travels from your ovary through your fallopian tube and to your uterus. If sperm fertilizes that egg, the fertilized egg implants into your uterine lining and pregnancy occurs.

Detailed explanation-2: -If the egg is fertilized by a sperm as it travels down the fallopian tube, then pregnancy occurs. The fertilized egg attaches to the lining of the uterus. The placenta then develops. The placenta transfers nutrition and oxygen to the fetus from mother.

Detailed explanation-3: -Ovulation is when your ovary releases a mature egg. The egg travels down the fallopian tube toward the uterus to be fertilized by sperm. The ovulation phase is the only time during your menstrual cycle when you can get pregnant.

Detailed explanation-4: -What is ovulation? Ovulation is a phase in the menstrual cycle when your ovary releases an egg (ovum). Once an egg leaves your ovary, it travels down your fallopian tube where it waits to be fertilized by sperm. On average, it happens on day 14 of a 28-day menstrual cycle.

Detailed explanation-5: -Ovulation marks the end of the follicular phase and the beginning of the luteal phase. During the luteal phase, the dominant follicle that released the mature egg changes into a structure called the corpus luteum. The corpus luteum produces important pregnancy hormones.