Negative PT/Delayed Mens

Is this possible po ba na am still pregnant kahit negative un PT. I did it twice po. As in one line lng , no faint line . Delayed for 5 days and never po ko nadelay in 12 months cycle. I pee a lot as in every 5 mins po then if d ko uminom water un lang un medyo nagpapatagal sa di ko pagbalik sa banyo which is weird kasi d naman poko ganito ka often mag wiwi kahit madmi ako naiinom na water and I have lower backpain too. Can someone enlighten me. Thank you!#pleasehelp #advicepls