Not really sure what group I belong in but...

I’ve have three miscarriages in a row, a total of four overall. I have two kids(same dad) and today I had a talk with my doc about what to do from here. Can I hear some stories that are similar to mine? I sent off some blood but my doc said most the time the results don’t show a damn thing(his words😆) so not to be hopeful that we’ll have an answer. He really thinks it’s just a case of really bad luck. I’m just not sure if we should do more invasive testing or just try naturally and potentially have another loss. Just looking for some women that have been there, done that. Thank you all for reading this.😌