(PEOPLE.com) -- They're going for an even 20! Michelle and Jim Bob Duggar, stars of TLC's "19 Kids and Counting," are expecting their 20th child this spring. "We are so excited," says Michelle, 45, who is now about three-and-a-half months into her pregnancy and due in April. "I feel good. I am past the sickness stage now." The Tontitown, Ark., couple, who are parents to children Joshua, 23 (who is married to Anna, 23 and has two children, Mackynzie, 2 and Michael, 4 months), twins Jana and John-David, 21; Jill, 20; Jessa, 19; Jinger, 17; Joseph, 16; Josiah, 15; Joy-Anna, 14; twins Jedidiah and Jeremiah, 12; Jason, 11; James, 10; Justin, 8; Jackson, 7; Johanna, 6; Jennifer, 4; and Jordyn, 3, weathered the medical emergency of their youngest daughter, Josie's birth on Dec. 10, 2009.
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"We are so excited," says Michelle Duggar
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"Josie is the most energetic, busy little almost-2-year-old," says Michelle
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"We are just going to do the best we can," says Michelle
Josie
Josie
@placeholder's medical drama -- and Michelle's own fight for survival -- was documented throughout their TV series.
Michelle
Michelle
Michelle
Michelle
Josie's medical drama -- and @placeholder's own fight for survival -- was documented throughout their TV series.
Josie
Josie
@placeholder will turn 2 in December and is developing normally, without any longterm effects from her premature birth.
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Josie
Following @placeholder's life-threatening arrival into the world, the Duggars understand that some might question their latest pregnancy.