Real line or evap

There’s definitely a line there but do yall think it looks like a real line or an evaporation line?? I do not like this brand of test and find they get bad evap lines but it’s what I have haha. This was taken in the 5 minutes and was the first time I had seen a line in the timeframe. It’s gotten darker over the day so I also don’t know if that points to it being evap. Going to do a first response with FMU tomorrow. But curious anyone’s thoughts! 10dpo