Bfp on IC but then negative??

Kaitlyn

I am 2 days late for AF. Been spotting since Saturday and taking tests. So far they were all bfn. This evening I took an IC with a 4 hour hold. This line popped up in 3 minutes (photo taken at 3 minutes).

I rushed to get a digital test but it says “no pregnant”. I took another IC with the exact same cup of urine and the second IC is bfn :( has this happened to anyone? Are false positives that common?

I was so excited and now I feel heartbroken