Period expected today !

Sometimes i get periods after 2 or 3 days so I’m not going to test because it breaks my heart 💔 I tested with cheapies (which detects above 20hcg) around 11 and 13dpo and it was negative.There is no sign of period coming. I’m experiencing light backache and twinges in boobs. I was nauseous last night. I experienced cramps before the day of ovulation till 12dpo. I’m not going to test till Sunday. I may test on Monday but until then I think I’ll get my periods but I don’t want my periods to start. I have an appointment with my doc and she’s going to start fertility medication if I get my period this month. So stressful ! Don’t wanna keep my hopes up !