Ok so.. I have a son, and have had 7 MC my period was due 4 days ago and I’ve had killer heartburn so picked up a cheap Tesco test, I done one last night came up a + but by morning the + was gone, so I took another one with my first morning urine and again got a +, is this a positive or an evap I’m going to buy another but I’m so paranoid I’m seeing things! And that it should be darker for 4 days late..