Do you have other children? If you don't mind my prying. But yes, I'm 40 and I get where you're coming from. It is frustrating and rather scary. But unless you're having menopause symptoms (which I doubt because you got pregnant), it's not necessarily your last chance. I don't know if this helps, but when I start worrying about my age and the chance of having another baby, I think about celebrities like Marcia Cross and Mariska Hagarty who had babies in their 40's, too. And I think Madonna had one after 40. My prayers are with you right now.