24 hour urine lab problem...

Caitlin
So I'm supposed to keep my Urine for 24 hours and the Drs office gave me a jug (gross, I know) but it's run out of room be fire the 24 hours! It's past midnight, but I'm still supposed to keep it until about 9 am. Has this happened to anyone else? What did you do? Just stop keeping your urine?