Not sure what to do...

Steph 🌼
So i came off the implant in april, AF has been 5 days long but varying cycles 15-20 days. I'm now on CD24 about a week ago i had 2 days of period pains but AF never came and ive done a test=BFN. Is it too early to test because my cycles so short? Also my cm is very watery and has been for the last week or more...?