Baby #2 too soon!

Hey mommy's... I'm looking for a little pick me up! I just found out I'm pregnant with #2, just 12 short months after giving birth to our first LO.  The two should be about 20 months apart.  Which from the outside looking in, it sounds like a pretty good gap! Far enough apart but still close enough that they will be friends hopefully.  However, now that it's happening to me it feels WAY too close!!! I am starting to panick a little and I can tell DH is worried also, as we are more temperamental with each other than usual.  Does anyone have any advice or pick-me-up-mommy-wisdom?  TIA!