Help! 😭

Hi, so I was supposed to get my period a couple days ago but I didn’t and I was about 2-3 days late. I took a pregnancy test at my nearest clinic and it came out negative. Had a doctors appointment yesterday, told the doctor about it, and she said that I shouldn’t freak out if I missed a period. This has never happened to me before. So yesterday, throughout the day, I had went to the bathroom and noticed that I was bleeding a little so I was happy about it come to find out that I’m just spotting instead. Is that normal?? Does it mean anything?? I’m an overthinker so I tend to worry a lot about anything 😭 pls help