How to get over broodiness! So annoying!?

Im 17 and am really broody quite a lot of the time. I have no intentions of having children yet as i have a lot of plans for my future and would like to get married before i have children. Also i have only been with my boyfriend 6months and he is not ready yet, neither am i. I don't understand though, in my mind i am not ready but i just feel like i want one. Any ways to get rid of my broodiness! I feel like my body and mind are conflicting one another haha.