Why is my body like this 😭

3 days until AF and she decides to come today, at only 10dpo. How is this enough time for an embryo to implant without it being pushed out with AF 😭 it’s just not fair, I’ve had 2 chemicals, one being an almost ectopic but didn’t get a chance to implant properly before it came out. 3 years of no contraception, 22 months of actively trying, all sorts of tests coming back clear for both of us, unexplained infertility, depression, anxiety, everyone and anyone around me getting pregnant by accident. IT JUST IS NOT FAIR! Why me, why us, how is it possible for my OH to have a child from a one night stand yet there’s nothing more than we want than our own and it won’t happen. Sorry for the rant, I just need to get it out and I don’t know where else to put it 😢😢