I’m confused

I’m a bit confused about ovulation so like let’s say you ovulate on Monday (when the egg is released) will you only be able to get pregnant on Monday or would you still be fertile on Tuesday, Wednesday, Thursday etc. ?

Also you know how thick egg white mucus can mean you’re ovulating, if you have that mucus for like 3 or 4 does that mean you’re fertile on all of those days or is it not possible to get pregnant after one/two days of it???