Extremely late period

Ja

So my period is 39 days late and in the middle of the night I woke up and went to the bathroom when I wiped I had pink spotting I was so sure my period was coming now when I woke up again there was noo blood but I feel heavy and a little off.. what is going on I had negative pregnancy tests all throughout and I haven’t had sex since September 29th..I’m so frustrated do u think that was my period or a sign that I’m pregnant