Late period negative test

Kayla

Alright everyone. I am 12 days late on my period and I have gotten negative tests. Now when my period was supposed to start i spotted that day and it was only in the morning and only when i wiped. For the passed week I have been feeling very exhausted like all the time. Even after a full nights sleep i am still exhausted. My boobs arent sore just feel heavy and i feel hungry all of time. These are not normal period symptoms for me so i am wondering what everyones thoughts are. Could I still be pregnant? Or is it period related? Or something else all together? Any input would be great.