I am not sure who is telling you that you should have children, or that you will change your mind, or even hold regret. Life is not defined by having or not having- whether that be children, or anything. I have several friends who were very clear in they did not want children. I suppose they got grief, too, but not from me, and they never lamented about family or friend pressuring them. I am writing because assumed people are much more open to allowing people to just be who they are and follow their own hearts without judgement. Maybe we all carry some unexamined biases? I wish you well on your journey.