Missed period ...

Chloe
So my last period was the 27th may till 1st June so I've worked out I'm late on I'm not useualy late Done a few cheap tests and all nevertive then today me and my partner had sex and a few hours later I've had a few drops of blood could this be my period?... Pics posted so u can see my chart and also the blood please feel free to comment as I need as much advice as possible