Teenage Pregnancy- Your Opinions?

Before you read this I would lke you to keep an open mind about my question. I am a 16 year old teenager and I want to know if it is a bad thing that I crave toget pregnant? I know that sounds crazy, but for the past year it is all I have been thinking about. I currently have two jobs and so does my boyfriend who I have been with for a year and a half. I know raising a baby is physically and emotionally draining. And I know how hard it is to take care of a baby. My brother and my sister both had their kids around the age of 18 and I have helped them raise their kids since i was 9. I just in the end want to know what I should do about this. Did anyone feel this way when they were younger?