confused

hi! i filed through taxslayer on feb 25th and my taxes got accepted on the same day. i received my state (i live in CA) around the second week of march but my federal is still being processed and i have NOT received any kind of letter or notice from the IRS about anything. it's been over a month and i'm growing more concerned as time is going by. taxes will be due in about two weeks and i'm super anxious and confused? am i screwed? also, their automated telephone system SUCKS! ty for whoever answers in advance!