19 Kids and Counting star Jill Duggar's original due date on March 24 has come and gone, but the expectant mother is telling everyone not to worry because Baby Dilly is "ready to come any day!"

She shared a picture of her husband Derick Dillard on her Instagram account (@jillmdillard) after he installed the baby's car seat and she captioned it: "Papa dilly installed the car seat today! Ready for #babydilly to come any day!"

Jill told PEOPLE that she actually has two due dates for Baby Dilly, and the second one is on April 5. "I have told myself, 'First-time moms often go a week and a half over, so don't get discouraged,'" she said. "When everyone else is asking you, 'When are you going to have that baby?' The baby will come when the baby comes."

As for other mothers who are going through the same thing, Jill advised them to plan on their baby coming late so they won't get discouraged.

Jill, who has helped deliver around 30 babies, is currently "feeling great" although she is experiencing some Braxton Hicks contractions, which is common during the later stage of pregnancy.

And while giving birth to Baby Dilly is first and foremost on her mind, Jill is also concerned about her studies as she is all set to take a midwifery exam later this year.

Being pregnant and studying about it at the same time feels very exciting for Jill. She said, "It takes on a whole different light when you are studying about what you are going through."

Derick and Jill have decided to give birth to Baby Dilly at home, and both the Duggars and Dillards are going to be present when that moment comes to show support. Jill said that her mother Michelle, mother-in-law Cathy Byrum and her sisters have agreed to be "errand runners" during her son's birth.