Found out I'm having my rainbow baby after stillbirth in 2015

Hannah • Ttc after a stillborn loss of my son in September 2015 💔
Took dye test yesterday and there was a faint line so I thought it was just an evap. Took another dye test today and there was another faint line so made OH run to town to pick up a clear blue. And it was positive!!! 
My ovulation day was 13th October which is the anniversary of my son's burial. He's definitely looking out for his mummy.
Didn't think I'd be able to be happy again. But oh so scared!