Hi ladies!

What do you think are the chances of getting pregnant using the pull out method ?? I’m worried because I thought I got what is supposed to be my period but it’s very light and hasn’t gotten any heavier .. hasn’t been consistent either . In December i had the same thing happen and ended up being pregnant but I lost the baby in January so this is supposed to be my first cycle since the loss . I’m worried what I’m having is implantation bleeding again . My boyfriend and I always use the pull out method so I’m just curious what are the chances of getting pregnant this way? I’m sure I’m just overthinking but you never know😭