Recurrent Chemical Pregnancy on BC ☹️

So i have had quite a few pregnancy losses now in total, but this year alone 4 very early miscarriages all on birth control 😭 why does various types of birth control not work for me.. Me and partner discussed trying for another recently deciding that i will come off bc. (have a 2year old girl already my little miracle) am just so worried what if when we do try again i just lose again and again.. 💔 it hurts me so much 😢 I just want to cry and cry... am being referred to a miscarriage clinic for investigations but have been told the wait is long. Right now we are going back to condoms until then. I'm just so fed up 😢 I still feel pregnant which is really hard to deal with and i have had no bleeding yet. Bit nothing was seen on my early scan just a little bit of fluid and my hcg bloods came back as negative.