It never fails every time I'm late and think I'm finally pregnant I take a test and start the next day!!! I have one child from a previous relationship but my husband wants a child that's his! We've been trying almost 3 years now. Not that he doesn't love our daughter, she has no idea he's not her biological dad. It's just so frustrating for me and him both!!! Especially with our daughter telling everyone she wants a baby brother!