About 4wks ago my husband and I had a miscarriage it was heart breaking my husband want kids so bad he don't have any and I have two of my own so I decided to give him at least one. Well for the last 3 weeks I been having hot flashes it hit me like a brick wall and my period haven't came on yet so everything is going on in my head that now maybe it's to late to give my husband a child. I be 40 in Feb. Should I be worry?😔😔😔😔😔