I'm so confused

So my depo is going to wear off in another week (I only had 1 shot). I know usually it takes women a long time after the last shot to get a period and ovulate and all that. But my past 2 pregnancies were right off of depo.

So yesterday I started spotting pink. Bright pink. It was like a little on the paper. And only 1 drop on my pad. But then nothing all day. Then today it was like 1 drop on the paper and nothing on the pad either but this time it was brown not pink.

So it AF not coming yet 😭 I thought she was coming and It was almost time for me to start trying