Blue in the bottom

Ever since going through a loss last year I feel like my mind is playing tricks on me… I don’t see a full line but the bottom stayed blue and a tiny spot at the top… I’m having a lot of cramping and my period only last 2 days last month and was paired with unusual nausea… I took this a few weeks ago and have been scared to retest but will be testing later. Guess I’m just curious has anyone else had this happen with the bottom staying blue but not fully connecting to the top. What has it meant for you?