Article continues below advertisementKendra and Joseph Duggar's inner circle appears to be shrinking, according to newly exposed prison phone calls. The mom-of-four, 27, warned her husband about revealing too much information while behind bars in a March 23 call recording obtained by a news outlet. Article continues below advertisementKendra Duggar Warned Joseph Duggar to Not Trust 'Anyone'Tap Here To Add Ok Magazine as A Trusted SourceSource: @littleduggarfamily/instagramKendra Duggar and Joseph Duggar tied the knot in September 2017.