inplantation bleeding??????

[Clarey24]

Hi everyone this is my first post and was wanting a little advice... My last period started on the 29th august and only lasted three days it was however around 6 days late which never happens and 3 days is shorter than usual anyway me and my partner had sex on the 1st 2nd 3rd and 4th of Sept im guessing my ovulation day would be around the 12th anyway all month I've had really sore aching boobs which never happens all month and I've been tired and hungry and i get up all through the night for a wee. Yesterday i had very strange light brown spotting on toilet paper which vanished but this morning i got up for a wee and a gush of red blood came out and was on toilet paper this has now continued all day not very heavy but not light either i always have really heavy periods im in bed now in pain with cramps could anyone tell me what this could be as its ten days early if its a period and this has never happened thank you