United Kingdom, Nov. 25 -- Lindsay Arnold is expecting her third child.

The 31-year-old professional dancer could not feel "more blessed, grateful, and excited" to be pregnant with her and husband Sam Cusick's third baby.

Lindsay - who has daughters Sage, five, and two-year-old June with her significant other - wrote on Instagram: "BABY CUSICK #3 IS ON THE WAY

"We could not feel more blessed, grateful, and excited (sic)"

Former Dancing With the Stars pro Lindsay admitted her family already "cannot wait" to meet their new addition.

She added: "we love you so much already baby and we can't wait to meet you!!

#pregnancy #babyontheway"

Dancing With the Stars' Witney Carson is also excited for her friend.

She commented: "I CANT WAIT FO...