Try not to think about the pregnancy possibility. Can't do anything about it at the moment, so just shelve that one for now.
After you get some more sleep you can take a nice shower - just force yourself, one foot in front of the other - you will feel much better afterwards. Your emotions will come back into balance over the next few days. Just ride it out, tenspeed (no pun intended)!! Keep posting :-)
P.S. Great going, Nicholi!!