Jerky Movements

I Have An 2003 Intrepid, The Oil Pressure Light Has Been Coming Off And On For A Month Or So, When Oil Was Last Changed, They Said It Was Dripping A Little. That's Not The Problem I Don't Think Though.
Today While Going To Lunch, I Pulled Out Of Our Parking Lot And Accelerated And The Car Started Bucking And Jerking. When It Shifted, It Was Ok. Went About A Half Mile To A Drive Thru And Then When I Pulled Out Of There, It Did The Same Thing... Orange Idiot Light Did Come On And "dinged" At Me... Not Sure If This Is The Check Engine Light Or Not, I Have No Manual... Help The Lady, If You Can,,, Any Ideas??????

Ok Guys, Too Slow.... I Was Told It Was A Crank Sensor, Going With That, My Husband Will Put On Car Tomorrow....will Let You Know If That Was The Problem For Sure, (had It Hooked To Auto Zone Machine)... 22 Dollars, I Can Live With.
Thanks
P.s. Of Course Since Hubby Came And Picked It Up At My Office, There Are No Symptoms.... Grrrrr