If everyone in the whole world was the same exact way (looked the same, dressed the same, talked the same way, had babies at the same time) this world wouldn't be as unique as it is. We all have different time lines and thats what makes us different from others.
No one has to conform to everyone else, we all have freedom of speech and we all make our own decisions. Sometimes we also make decisions that aren't what others want of us.
Seriously, a woman who has wanted a baby for soo long can be super scared as she looks at those two pink lines on her pregnancy test (even if the baby was planned). Eventually, we take what life gives us and emotions can run through our heads. Finding out you are pregnant, you can either take it in a positive way or a negative one. Life is only hard if we make it hard so once a girl finds out she has a baby on the way, she can make the best out of it or let her world fall down.
Life throws us curve balls BUT our babies are here for reasons. We are making a future generation and when a teenage girl makes the best outta her pregnancy, I give her a lot of credit! Pregnancy shows how strong you are, whether you like it or not, another person is growing inside of you and depending on you for everything. You can love someone so much...someone you haven't even met yet and thats something so beautiful in life.
Why aren't others complaining about the people who are over 45 having kids, what will happen when their parents are too old to take them to the park and play ball etc. Thats what makes life wonderful, we all have different timelines.