I took a First response today and it came up with 2 lines after about 2 1/2 minutes, the 2nd line was very faint but I swear I saw it. Well, I went to look at it about an hour later and it was gone. I have been pregnant 6x before so I have taken many tests. I am breastfeeding right now so I have not had a period yet, so i can't judge on that. Has anyone had this happen to them?Just kinda weird.