Scared happy shaking!

Ok so to cut a long story short. Me and my partner lost our baby in August last year when he was 18 days old to a heart condition which was diagnosed when I was about 23 weeks, we have been sort of trying since the September. Never to replace our boy. I always thought that getting pregnant was going to be super hard for us as my periods have always been messed up so was a complete shock. My cycle is roughly 42 days I'm now on day 45. I tested on Thursday morning as I just had a feeling but it was negative. I've just tested again with a different brand and this happened.....