The couple, who married in April 2013 after a five month engagement, already have a daughter, two-year-old Dulcie.
The exciting news comes via People magazine, who claim the 33-year-old revealed his wifeโs pregnancy news in their Sexiest Men issue.
Meanwhile E! News have also revealed the pair are expecting bub number two. Jamie is yet to comment on the claims.
We bet he canโt wait for the arrival of their new bundle of joy, as Dornan has spoken candidly about his love for fatherhood in the past.

Jamie is already the proud father of two-year-old daughter Dulcie.
In February, he told Now magazine that fatherhood was โthe most joyous thing imaginable. Itโs totally changed our lives but only for the positive.โ
โI was discouraged by peopleโs attitude so it was refreshing when we occasionally met people who said, โItโs the best thing, youโre going to love it.'โ The actor explained.
โI saw a pregnant friend the other night and I was like, โEmbrace it! Donโt listen to all the people who are down on it, because itโs only good.'โ
And this super-dad doesnโt mind putting in the hard yards, either. โI donโt mind getting up in the middle of the night with her,โ he said, โalthough weโre lucky because she sleeps for 12 hours.โ
Letโs hope baby number two is just as much of an angel!