What's the chances I could be pregnant?

So me and my new partner went out last weekend for a meal and hotel stay we had a few drinks and well....we ended up sleeping together 5 times! Unprotected! I was two days away from my fertile window according to this app and already in it with another so I'm just wondering what are the chances I could be pregnant?? We both have 3year olds from previous relationships so both no were fertile.
My cm dried up for two days after and this morning I had a glob of milky/watery cm : 
No bashing please 
Tia xx