She’s got her own little rainbow gel pen on the way.

“PEN15” star Maya Erskine is having a big week! The actress announced Monday that she’s pregnant with her first child, and also engaged to fellow actor Michael Angarano.

“When 2 becomes 3,” Erskine, 33, captioned her Instagram, adding “And please vote. #bidenharris2020.”

“And then there were 3… also, we’re engaged,” “This Is Us” actor Angarano, 33, wrote in his own Instagram post.

Erskine and Angarano (who had a role in the most recent season of “PEN15”) went public with their romance at the 2019 Emmys in September, when the actor posted from the ceremony.