I’m currently 27 days late with super bad back pain.. I took a test like a week ago and it was negative.. I have stressed but my periods are always as late as 7 days. I do have irregular periods but never has it been MIA for this long.. I did have sex around my ovulation days and he did finish in me like two times. I don’t really have symptoms other than my back pain and cramping.. sometimes I get the feeling that my period has arrived but it’s just discharge.. idk what to think at this point. I’d appreciate some advice