Please help me

THIS A LITTLE LONG BUT I AM DESPERATE FOR HELP I began to take lo loestrin for the first time may 7, this is the last day of my period. I had unprotected sex on may 13 and the guy pulled out twice ( this is the 7th day of my bc i had taken 7 pills) i took a plan b to be safe. May 13 is the first day of my fertile calender.. im supposed to have ovulated may 17 but i dont know how the lo loestrin and plan b affected my ovulation. I’m on my first unactive pill and i’m stressing out about pregnancy.. i got spotting around may 17 until may 23 and ive had a few very slight nauseous spells the past few weeks but they go away after 10 minutes and i think they are from me stressing about pregnancy but of course i have no idea. My period is supposed to come in 2 days according to this app and my breasts are feeling a little tender and im cramping very mildly but i just noticed some clear strechy discharge which is causing me to stress again.. do you think i am safe??