Tori Spelling's husband says her pregnancy is a "testament" to her for standing by him.
Dean McDermott, 49, and 43-year-old Tori's marriage was in trouble three years ago when he admitted to cheating on her but they got their relationship back on track and she is now expecting their fifth child.
Dean told PEOPLE: "This baby is a testament to how much we love each other. And it's a testament to Tori for staying with me. It's amazing.
"Love does conquer all. And that's what this pregnancy says about our relationship. It's everlasting."
Tori added: "Obviously three years ago we hit a really rough patch and we made the conscious decision based on our love for each other and our love for our family as a whole to tough it out and work through it and get through it.
"And I'm so happy that that happened and there was never a doubt in my mind that I wanted to do that."
The former 'Beverly Hills 90210' actress and her husband already have children Liam, nine, Stella, eight Hattie, five, and Finn, four, together and Dean also has an 18-year-old son, Jack, from his previous marriage.
And they admitted that Tori's fifth pregnancy came as a surprise.
She said: "It was a total surprise. But we always wanted a big family. I'm really excited.
"Dean was saying, 'We just got Finn out of diapers; I thought we were in the clear!'
"For the first time this year, they're all in school. So it's like, wow. We're basically starting over.
"But this baby happened at the best time.
"Nothing is ever perfect, but I'm so madly in love with my husband and with our kids. The idea of adding to that is such a blessing."