19 and TTC

I turn 19 in a few days and have been ttc on and off for about 6 months now. Me and my boyfriend have been seriously trying starting last month. We both have been together for a year and a half and both really want a baby. I'm starting to feel discouraged and thinking I can't get pregnant. Especially seeing girls my age and younger get pregnant so easily without even trying. I'm looking for any advice and support I can get 😊