The Hollywood baby boom continues to, well, boom! Both Blake Lively and Mila Kunis announced their pregnancies, along with a heck of a lot of other celebs who are becoming parents these days for the first, second or, in this next case, the third time. Katherine Heigl and hubby Josh Kelly are expecting their third child together, and although they’re experienced parents, this is actually the first pregnancy for Heigl, which means there are all new quirks to experience this time around.

37-year-old Katherine and 34-year-old musician Josh are already the proud parents of four-year-old Adelaide and seven-year-old Naleigh. Naleigh was adopted from South Korea in 2009 when she was just nine months old and Adelaide was adopted domestically in 2012.

As Katherine grew up in a family that also included an adopted sibling, this was just the type of family she and Josh had planned from the start. But this time around, there will be a few notable differences. One: the fact that Katherine is pregnant, of course. Two: It’s a boy!

“This is an incredibly exciting time for us filled with hope, anticipation and hormones. Well, only I’m filled with hormones, but everyone in the family gets to enjoy them,” Heigl joked with People. “We couldn’t be more excited to be able to finally share this news with our fans and are looking forward to continuing to share the journey with you all. xoxo, Katie and Josh.”

With the baby due in January, they’ll have plenty of time to adjust to all of the upcoming changes, as well as becoming an adorable family of five.

Do you like the idea of having babies through pregnancy and through adoption like Katherine Heigl? Tweet us @BritandCo!

(h/t People, photos via Katherine Heigl,Imeh Akpanudosen/Getty)