Confused please HELPPP!!!!

Jennifer

Okay so I keep getting weak , and the hunger is serious . I literally gets hungry every 30 mins and I eat everything also I have these intense headaches that’s comes and goes. I was having heartburn but they stopped . Period came twice in one month and after a week prior that I was having cramps. I took a test and it’s a BFN. I don’t know what’s going on. My ovulation day is in 6 days. PLEASEEE HELPP!!