*You (JJ) and Aaron Hotchner have just found out you were pregnant with your first baby yesterday; you and Aaron weren’t planning to tell the team to keep this baby a secret for as long as possible for Aaron’s preference.

Somehow, Rossi had put the pieces together without anyone telling him any information or clues; As you were the last person to arrive to work that early morning; not yet showing a baby bump yet because you had a naturally thin frame to begin with.*