TTC for a very long time now

My partner and I have been TTC for about 2 1/2 years , We have a beautiful healthy strong girl who is almost 8 whom we adore but giving her a sibling would be the best gift we could give her and our family. about 3 years ago we had a miscarriage I was only 4/5 weeks pregnant extremely early. , I'm not due for my period until 13/12 but today 8/12 I took 2 clear blue tests and I have a very faint line in both. can anyone else see it ? Or is it in my head ?! This would be the most precious gift at Xmas to find out I'm finally having baby no 2 after so many years .