A close pal told Life & Style magazine: "Jacqui's having a boy!"
The couple are currently in Beverly Hills and eyewitnesses reported they looked blissfully happy together.
A source said: "They seemed very happy together. Jacqui kept rubbing her belly and tousling Guy's hair. They were just having a leisurely morning and enjoying private conversations with each other."
Ritchie and Ainsley have reportedly been hoping to start a family for some time and he is determined she should have a stress-free pregnancy.
A friend said: "They have been keen to start a family for a while now. They're absolutely made up. We expect to hear wedding bells next year.
"Jacqui was crying with joy when she found out she was pregnant. They went on holiday because Guy is determined she takes it easy. He won't let her do anything more strenuous than argue over baby names."
Ritchie split from Madonna in 2008 after almost eight years of marriage.
24.com publishes all comments posted on articles provided that they adhere to our Comments Policy. Should you wish to report a comment for editorial review, please do so by clicking the 'Report Comment' button to the right of each comment.
It's up to you to decide who took the best South African belfie. Vote now and you could win a prize! Read More »
Who took the best selfie for 2014? It's up to you to decide. Here are the nominees for the top 5 best local celebrity selfies for the year. Read More »
New music video!
Did you know?
A scary night!
Guns N' Roses guitarist!
Great gig pics!
PretoriaTHJ ConsultingR15 000 - R18 000 Per Month
Cape TownQuantum Recruitment
Cape TownDatafin Recruitment
HousesR 5 450 000
HousesR 2 550 000
HousesR 16 975 000