Leaking oil

Ok, last night I was driving in the rain when suddenly I hear the LOUDEST NOISE EVER and I thought to myself "What the F*ck did I just hit!!!?" Now this morning I notice a nice oil patch has developed under the car. Any ideas on what I might have broken? Its not the fastest oil leak ever but theres a nice slick.

Have a looky underneath to see if ya busted ya oil pan. Ya mighta cracked when ya hit whatever that was.
Check also ya filter and oil pressure sending unit-they're down low too and one mighta gotten busted.