On Thursday, I took a pregnancy test because I had felt exhausted and non of my normal pms symptoms were happening and my period is due tomorrow.. both the line test and digital came up positive.. now it’s Saturday and I came home from to take another digital and it says not pregnant. I’m so confused and will be so sad if I’m not pregnant :( has this happened to anyone?

Update: took another test this morning and it’s negative :( Im so upset, we were so excited. Idk what happened