Help! Confused...

It’s my first month off the pill... I am due AF on Saturday going by my app.. 2 days ago I had one episode of light pink spotting and nausea all that day.. my breasts have felt very heavy and tender the last few days and I’m also getting some period cramps... I took a test today and it was negative straight away 😩 I’m just wondering going by all that could I still be in with a chance? Or would the test have showed up positive at this stage? It’s the spotting the other day that’s throwing me off not sure what’s going on... I would love to know what ye think?