Possibly triphasic?

Cassy • Mon, May 25 • Have hypothyroidism.2 older kids, 2 younger step kids. 2014 had ovarian cyst rupture, and 2 miscarriages in my life

Af due in 3 days the 28th. Sharp pains in lower back yesterday, with days back ache before sharp pain..and now since sharp pain, less backache. What do you think? Help?!