NEED ADVICE..HELP..TWEAK

OK ladies, last night my god sons girl friend asked if she could POS because she knew she was pregnant.. so I gave her my cup and a regular test plus a digital. Within 30 seconds both test came up bfp. So about an hour later I decided to test.. my patience is just not strong enough after seeing those two positives. So I got my cup which was RINSED AND WASHED OUT.. PLUS I WIPED WITH BABY WIPE AND TOILET PAPER. WELL I DID MY CHEAPO TEST AND AS IM STARING AT IT...I DUMP MY PEE'S DOWN TOILET. next thing I see is this very faint positive.. freaking out I look in my chip and have very few drops of urine left so I rip open 2nd test and dip to what it can be saturated.. next thing a BFP... but still shocked.. I want ams bought a first response and I think I see something.. I'M SO CONFUSED... HOW DOES THIS HAPPEN?

1ST PIC IS LAST NIGHTS FIRST TEST

2ND PIC IS TEST IMMEDIATELY AFTER

3RD PIC IS THIS MORNING