Baby making

I want a baby and I want information about conceiving. Here are my "stats" for lack of a better term. 19, white (I say this because I heard Caucasian tend to be less fertile than African America women. Further study is needed) senior in high school, plans to be a sonographic technician, RN if I can work up to it. Currently on Nexeplon/Implant. Boyfriend is 19, white, aiming to be a police officer. Willing to be a single mother. I know I need to wait— and I will, I'm not going to ruin my life yet— but what are my chances of conceiving at age 25?