How young is too young?

I need to vent. I am 22 going on 23. My husband and I will be celebrating our 1st year of marriage in February. I have always felt that I was meant to be a mother. I work with babies all the time and have always been a 2nd mom to my siblings. We have had no intention to get pregnant right now because we both want to focus on our jobs and be able to know that we are able to support a baby. But at times(lately all the time) I have been wanting a baby. I am very strong in my faith and believe that it'll happen in God's time. I am not on birth control currently and also have not been having protected sex. Although it shouldn't surprise me, it does, that I am still not pregnant. I start doubting myself and it affects me at times. Recently, I went to my OB who wants to put me on birth control because of some symptoms I was having due to my PCOS and because I told her I wasn't planning to get pregnant right now. I know I should've spoke up, but I felt ashamed, embarrassed, and judged (even though she wasn't doing anything to make me feel that way). I just want to know if maybe I am too young. I know everyone has their opinion, and in the end it'll be on God's timing. Yet I just can't help myself when I see younger girls having multiple children and I can't even conceive. So am I crazy or is this normal? Is 23 a good age? Still too young?