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Jill Duggar and Derick Dillard can’t wait to meet their baby boy, but the first-time parents-to-be are not expecting their son to arrive on his actual due date — which is today (March 24).

The 19 Kids and Counting star, 23 – a midwife in training – is “feeling great,” she tells PEOPLE. And while she’s experiencing Braxton Hicks contractions, she knows they are a natural occurrence in the later stages of pregnancy.

“I have told myself, ‘First-time moms often go a week and a half over, so don’t get discouraged,’” she shares. “When everyone else is asking you, ‘When are you going to have that baby?’ The baby will come when the baby comes.”

“[I’m] planning on the baby coming late, no big deal – if you have it in your head that way, you won’t get discouraged,” she adds.

Derick, 26, has been a great support through it all.

“He is so sweet,” gushes Jill. “He’s doing amazing. He gave me a foot massage and painted my nails last night…He asked me what color I wanted, and we decided on pink nails. He picked out a bright pink and he said, ‘Here we go–this will be your labor color.’”

The excited mom-to-be has shared a few new photos via Facebook.

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