Strong BFP yesterday...today???

Yesterday with FMU I saw two beautiful pink lines on a FRER, with SMU I confirmed with a digital FRER and it said YES+! This morning I took a Kroger (grocery store) brand test and all I see is a vvvvvvfl if any! Please let me know what you think, I don't want to get my hopes up! I posted my FRER from yesterday (picture taken 5 min after) and the Kroger brand from today. Thanks!!