That feeling...

All the big milestones that have happened in my life I’ve been able to clearly imagine them happening. Like graduating, getting married, buying a house - I could clearly envisage them happening long before. However, for as long as I can remember, I’ve always had this feeling that I won’t be able to get pregnant, or something’s not right: I can’t imagine actually being pregnant. I know it sounds a bit ridiculous and I’m so positive most of the time, but every now and then I think about this and wonder if it’ll ever happen. The closest I’ve got is a chemical pregnancy a couple of months ago, but other than that I feel like holding my own child in my arms is years away, if ever. Can anyone else relate? Has anyone got any positive stories?