faint positive after miscarriage confusion?!

Nicole
So on the 15th March I had a miscarriage at roughly around 4/5 weeks! As soon as I stopped bleeding we started trying again on the 28th march and have been TTC ever since then. The past week I have felt the same pregnancy symptoms as last time but wasn't sure if I was just trying to convince myself I was? But on Sunday 8th April I took a test which is ridiculously early because I am not due on until roughly 26th April This  month, but I got a faint positive then a few days later I did another and got a negative then a few days after that did another and got an even more faint positive? I am aware this could still be hgc in my body still but I've heard after me having such an early miscarriage  that this is rare as it usually goes back down quicker. I really don't know what to think after getting such mixed results. I really am trying not to get my hopes up! Could I just be testing far too early?! Any advice would be appreciated. top pic is test I did on 8th April bottom pics was Wed 12th April (both different brands)