help!

twoplusoneequalsthree
So my fiance and i baby danced during my furtile window and everythings been pretty weird since then. I have three <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a> on my ohone and they all say different start days one was proven wrong yesterday. I have had breast pains for a week ,i have fiberouse breasts that typically only bother me when my period starts, never this long. I also have had mild cramps. I i thought my period was going to start but litterly nothing besides some brown spots on my underwear on last sunday ,so four days ago. I have tested and i couldnt see anything. I am suppose to start on sunday or monday. Any thoughts are welcomed.