In the case where a boy and a girl are in love, start up a relationship there must be sex and having sex in a relationship it comes with a price, PREGNANCY.
First of all the word “must” is wrong. Yes you can be in love with someone but you don’t have to do anything with them just to express your love. Some people wait until marriage and it’s totally possible.
Second, if you don’t want to wait you can just practice safe sex. A relationship does not always have to result in pregnancy.
When it happens that the girl is pregnant they always use "it was a Mistake, I made a mistake" as an excuse to judge their actions, why must we the youth call the result of having sex when we're not prepared for a Mistake?
I don’t understand. It really is a mistake because they shouldn’t have done it in the first place fully knowing they weren’t yet ready for the responsibility they will bear.
Can we also say the pregnancy is a mistake when the child has grown (that's for those who kept it) to become somebody special in the society? Can we also say it to our child's face that we ones called them a mistake?
I don’t think you should take it personally if someone were to call their pregnancy a mistake. Pregnancy will not be the same as when you give birth. Of course when you already have the child, you should do your best to make them feel loved no matter how big of a mistake it was. Own up to your mistake and give your child a nice life.
Do not try to romanticize teenage pregnancy or unplanned pregnancy. Both the mother and the child suffer during a pregnancy that was not planned.