MerDer Tragedy

For the first time since signing a blue post it, Meredith isn't happy when she holds up the positive pregnancy test. She knows it's good, she knows having a baby is a good thing and that Derek is going to be thrilled. No matter what is going on between them, Derek can always find a way to be happy about adding to their family. But she doesn't see how this can be a good thing. She really can't understand how bringing a baby into their nightly fights, into the confusion about their marriage and careers, and into the two rambunctious kids that leave their house a mess that can't seem to be controlled can be good.