This weekend, Megan Fox announced that she was pregnant, and posted a picture collage on Instagram listing who was ?#NotTheFather.? The collage included, Shia LaBeouf, Will Arnett, and Jake Johnson. When asked about her post, Arnett stated, ?It was pretty humorous? She is hippy dippy. I should buy her Birkenstocks or something or a birthing tub. That?s what I?m going to get her. It?s like a whole tub and they get in it and everyone?s in it at the same time? Chanting and all the fluid is happening at once.?