Doubts and worries!

Silvia • 💗
Hi everyone. I'd like to share my situation with you guys to see if you could, I don't know, help me somehow or tell me something to tranquilize me. Well, 9 days ago I had a really stretchy and eggwhite cervical mucus, those that you have when you're fertile. Turns out that, according to the app I use, I was not on my fertile days anymore. But this is my first cycle without BCP. So I had unprotected sex on this mucus day and on the next 3 days as well (in which I had the eggwhite CM and a watery CM too).
So, according to my app, AF should've come 3 days ago and I have a regular cycle, always had. 
To sum up: do I have a real possibility of being pregnant? Thank you! XXX