Confused.....

so i was suppose to AF this morning and she is very regular and always on time, but she hasnt come yet and im not feeling how i normally feel before she comes. Me and my SO have been trying for about 8 months now after suffering a miscarriage at 14 weeks. I decided to goto the store and get a hpt and took it around 11:45a.m and this is how it came out. im confused due to the blue line that i guess bled thru where the BFP is suppose to be, dont know if its happen to other people or if its a faulty test and i should try again tomorrow first thing in morning or wait til i completely miss AF... help please