Also take a test and you will no if you are or not.
I'm 19 and I took maternity leave at 30 weeks because I work in a learning difficulties residential care home and it was getting to much my feet would swell I would be almost asleep and some of the residents are violent but it's when ever you feel ready to my sister worked up till 38 weeks x
I have no idea how to respond because you gave almost no useful information. But if you are pregnant at 19, don't quit working because you are going to need the money because life is about to get expensive, stressful, and hard. Money makes having a baby a little easier.