Positive right??

Took a tesco test this morning, and it looked like it was going to be negative as all the colour went to the control window then slowly filtered back into the test window (all within the 5 minutes that the packet says to check your test in). Is this positive?? Not sure why I’m in denial 😂 probably just slightly shocked as also have a 9 month old at the moment 🙃 Anyone had any false positives / bad experiences with Tesco tests?? Thanks! :)