Urges to pee..early pregnancy sign?

im 20 yrs old, mother of a 2 year old, this month i been making alot of trips to the bathroom, i get the urge to go soo bad and i do pee..earlier i was at the store and out of the blues i had to pee so bad i just had to stop walking and stand still and try to hold it in..i almost couldnt make it..i had to run to the bathroom, could this be a sign for a 2nd pregnancy?my period is due in a week.