Really torn!!!! Any advice welcome

Me and my fiancee are so happy and financially stable and due to be married in the summer I'm 24 and he's 28. There has been some comments from his family and mine about grandchildren but I'm not sure I'm ready, I feel there's a lot I want to do, but I have added pressure of all the women on my mothers side have needed a hysterectomy in their early 30's. I am worried if I wait I'll not be able to have children but at the same time I don't want to feel resentful because I couldn't do the things I want to do (travel, study) sorry if this sounds selfish but I'm struggling to explain to family how I feel.