can you get pregnant having unprotected sex days before fertile window

I was just wondering I don't know if I'm Ttc but I had unprotected intercourse the 28th of April which was my last day of my . And unprotected intercourse may 2nd and according to this calculater on this app I'm fertile may 3rd- I think the 10th can I get pregnant from having unprotected intercourse on those days I also noticed since may 2nd today I started having some discharge it's idk a milky white I don't know if that means I'm ovulating or not sorry for all the questions I'm new to this