Your period comes out if your uterus into the cervix
Period blood comes from a girl's uterus. When a girl has her period, the uterus sheds the lining it builds up to feed an egg. When the egg isn't fertilized, the lining, which is made up of blood and clots, falls off of the walls and comes out of her cervix, the bottom of her uterus that opens into the end of the vagina, and then the blood flows down out of the opening of her vagina.
The blood from your period should be dark, not bright, red because it is "old" blood that the uterus sheds. It is also normal to see clots or lumps of blood during your period.
Your period should have blood clots. Every month the uterus prepares itself for pregnancy. If a woman does not conceive, the lining of the uterus comes out (period). It is a cleansing process that happens every month.
The blood from your period comes out of the vagina, through the cervix, which is the lower part of the uterus. It is a normal part of the menstrual cycle for the lining of the uterus to shed each month during menstruation.
A females body prepares itself for holding a baby by collecting blood with in the uterus, a body part that is connected to the vagina. If no pregnancy accurs, the body pushes the blood out of the uterus and it flows out of the vagina, thus the female is on her period. This process is so the body can put more blood into the uterus that is fresh for another chance at pregnancy.
Blood flows out of the uterus through the cervix and then out of the body through the vagina during menstruation.
During menstruation the blood comes out via your vagina. Blood comes out of the uterus, passes through the cervix, then exits via your vagina - if menstruating you really should know how this process occurs.
Your hormones trigger your uterus to shed the blood lining that has been building up.
metrorrhagia
Yes, you will have blood. Menstruation is the process in which your uterus lining sheds, the menstrual flow is made-up of blood and uterus tissue mixed with your discharge. When your period first starts it may be light so there will be less blood, this may look like brown or pink discharge, then as your flow becomes heavier you will see more blood.
A period is the sheding of the lining of your uterus. It gets rid of old blood and makes new. When you are pregnant you use the lining of your uterus for your baby. It doesn't shed again until you have your baby.