Feeling disappointed

Crystal

So couple weeks a go I was few symptoms tested with digital test got a positive result but w/ error book tock another one lil chep one with very failed line tock all of 3 minutes to show I wanted several day tock another and they was all negative so went on about my days still few symptoms then over the weekend I spotted couple times till tonight cramping came one thing it just my period checked my app. I still had 5 or 6 days till red day and tonight I passed a mass and all the feeling from times befor came back I'm just so sad now I dont understand why it keeps happening I'm getting so disappointed and feel like what am I going wrong