Kendra Duggar Asks Joseph If He Loves Her After Arrests in Jail Call

Kendra Duggar has plenty on her plate after she and her husband Joseph were arrested in March ... but during one phone call while the latter was still in jail, Kendra made sure of one thing ... that her man still loves her.

TMZ obtained audio from the couple's phone calls while Joseph was still behind bars in Arkansas ... and Kendra shockingly asks during a March 22 chat if Joseph loves her, to which he chuckles and replies, "I love you so much."

Kendra asked her burning question just 4 days after Joseph was locked up on child molestation charges, and 2 days after they were both charged with 4 counts each of second-degree endangering the welfare of a minor and second-degree false imprisonment.

TMZ has obtained several phone calls between the "19 Kids and Counting" stars while Joseph was still in the clink -- and even if he didn't say "I love you" to Kendra, he certainly showed it by offering her support as she dealt with the weight of the situation.

Just check out the above clip -- she's breaking down from the pressure of their legal troubles, and Joseph is encouraging her to breathe until she can calm down.

Kendra had not been shy about confessing to her husband how much their arrests had been weighing on her ... telling him in another call she could barely eat and walk due to her anxiety. But, Joseph has seemingly been gracious ... even saying during another chat he understands she needs to put the well-being of their 4 children before him.

Joseph has since been extradited to Florida for his minor sex abuse charges and released on a $600K bond. Kendra, for her part, spent a few hours in jail in their hometown of Tontitown after she was hit with the welfare and imprisonment charges.