Catherine Giudici is one lucky lady!

The pregnant Bachelor victor, 29, proved how fortunate she is to be married to Sean Lowe by sharing a photo of her enviable engagement ring and classy wedding band.

RELATED: See Catherine Giudici and Sean Lowe’s Baby Sonogram

“'Mrs. Catherine, your diamonds are calling on line three.' Ring rang,” she captioned the image.

Catherine recently announced she and her 32-year-old hubby are expecting their first child together and has not shied away from showing off her growing baby bump.

catherine giudici sean lowe getty images

Catherine and Sean.

“Catherine and Sean are over the moon they are having a baby. They both have dreamed of this day for a very long time,” a source previously revealed.

“No one believed they would ever make it as a reality show couple and here they are today starting a family. They said this is just the beginning — they want a HUGE family.”