On her page, Wambui expressed the extraordinary feeling of becoming a mum.
"The feeling of being a mom is an extraordinary one, the energy I gave to bring you into this world is unbelievable, actually no word would be enough to express how I feel, all I know is I love you so much baby AJ …..and a big thank you to the ALMIGHTY for making it happen."
Mpasho had previously announced that the couple was expecting a baby after Wambui was spotted at a friend's occasion with a baby bump.
The couple's baby comes at a time when the two are almost celebrating their first wedding anniversary.
They held a wedding last year in May.
From Mpasho, congratulations to the new parents Kajim and Wambui.
Different witness accounts of the KDF Helicopter crash