i had unprotected sex 2 days before i got my period- now my next period is 9 days late!!

piper
So i had unprotected sex twice (both extremely brief and one pretty unsuccessful) in the days before my period was supposed to come. The longer unprotected sex was Sept. 1st, and I was set to get my period Sept 3rd and was experiencing minor cramps the few days before and serious tender breasts as I usually do. I wasn't worried about the brief unprotected sex (where he did not ejaculate and it was not in my fertile window) because I had a full blown period on <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a>.'s scheduled day that lasted 5 days, my usual. Now that i am a full 9 days late i am worried. I am also confused because my breasts have increased in size as they usually do for my period and are super tender!! and have been since a couple days before I was supposed to get my period! I have also had sporadic cramps prior to when I supposed to get it and when I am supposed to be on it. So basically, unprotected sex with no ejaculation followed by a full blown period but currently experiencing major symptoms and am 9 days late. Note: I had another scare this june when I didn't get my period ALL month but got it July 3rd. I was having protected sex at the time, but the fact that I had skipped a month freaked me out.