Waiting for baby

My husband and I have been married 7 years. I am 28 years old. We have been waiting to have a child till we both had our careers and my husband felt comfortable financially. (He is a worrier). We were supposed to start trying this summer because we both have our careers done and I am finished with school. We have been saving money like crazy and feel comfortable. Now my husband has thrown out the idea of waiting two more years so we can travel. I feel like waiting ti true till I am 30 is risky. What if we can't have one right a way or something else happens. He wants to travel and get that out of his system first and he think with a child we wont be able to. I'm also thinking of grandparents and parents who may be I'll too it's frustrating sometimes.

Does anyone agree with him and am I being to negative? Should we wait and see or am I right about it being risky?