What are the chances of pregnancy?

Michelle
Hey everyone!
So my last period was on the 27th may 2016. 
Before I got it I was on the pill and had brown spotting, but I was only taking it every second day. I stopped it and got my period so obviously my period was trying to come through. 
My <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period apps</a> are saying that I'm fertile this week,
17th  I had unprotected sex 3 times but 2 of the times my boyfriend came inside me. 
And then 18th I had a shower and had stringy egg white discharge.. Then had uprotected sex with my boyfriend an he came inside me again..
What are my changes of being pregnant? 
Thanks in advance! :)
****side note, I had an abortion when I was 17, I'm 21 now. Would that affect my chances?****