See, this is never one I could understand. I could never, ever piss on a stick without dp there to hold my hand.
DS1: started period, told dp. Few days later, realised had started, but not carried on with period, so told dp. We decided to piss on the stick, then ran away and counted 3 minutes and then went back together to look at it.
One that got away: started period, felt crap, told dp. We decided things were a bit odd and pissed on the stick and had a good old look at the blue line.
DS2: Said to DP "shouldn't period have started by now?" so we went together to Boots, bought a test, took it home together, did the test, watched it turn blue.
Doing a pg test is just not something I could ever have done alone!