Should I feel my "clock" ticking at 22?

I have been with my husband for 7 years, and married for about 4. We want a baby and a family of our own so so bad. It's so hard to see people who are younger with cute little kids! I just feel like a part of me is missing, and I know that having a child of my own is what that is. My doctor has upped my dosage of Clomid, and I have PCOS. My husband might be getting deployed this summer though, so that is just another 4 months of NOT trying! errr! Anyway, I can use the 4 months to lose some weight and get healthy again which will HOPEFULLY get me pregnant....I just can't help but to feel rushed...why is this? I am only 22, and he is 25...please tell me that even if I have my first at 24 I will still be a young mom!