I feel my biological clock ticking!!

I’m 27 and have been with my boyfriend for a little over a year. He’s 32 and amazing. We both are working on our careers with me about to enter nursing school and him starting his business, and we have been talking about getting a place together for the past month now. Lately I’ve been feeling a little down because I’m not married yet and I have no kids as of right now. I had a goal for myself that I would be married by 24 and have a kid by 27. I know my boyfriend is the one I want to spend my life with because our relationship is close to perfection in my eyes. We never argue just have disagreements and he’s honestly my best friend. I love the way he loves on me and the way he looks at me it’s like no one else is around, just the two of us. But I don’t want to wait forever to get married. He was with his ex on and off for 5 years, and I told him he has two years to decide if he sees a future with me. I know I’m still young but I’m afraid if we wait a long time I won’t have my first kid until my mid thirties and I’m afraid of having a hard time conceiving or pregnancy issues. I just want my life to start. I still feel like it hasn’t began yet. I want to be a wife and a mother so badly and I want it with my boyfriend. I can feel my biological clock ticking and it’s ticking loud. Hopefully one day it will happen. I haven’t said anything to him just needed to vent.