Help me!

So yesterday I decided I was going to drink the recommended amount of water because I often drink like one cup of water a day and I know it’s bad for me so I drank like 80 ounces yesterday and I went pee A LOT! well I went to sleep and woke up twice to pee and the third time I didn’t quite make it...I’m not sure if it’s a combination of the water and being exhausted but I remember thinking that I was dreaming or something until I actually felt it then I woke up. I’m also extra scared because I had sex about two weeks ago (protected) and I’m late on my period by about 05 days however my periods are normally irregular so it’s nothing new to me and I also took a pregnancy test one week after having sex and it was negative.