My period was a day late and when it came i bled for 4days instead of 5..i didn't have any cramping or pain until my last day..am i pregnant?

Probably just fine.: Question did not say if on hormones or not, either way probably just an off cycles especially if the amount of bleeding and other symptoms (breast soreness, bloating, cramps if off pills) were typical. If on pills, many women don't have 'clock work' regular cycles every month on the pill. Just make sure you take them daily. Can always check a pregnancy test but i bet it will be negative.