My significant other ejaculated inside of me on the 1st. my period is expected to start on november 10th. have had a lot of milky white water discharge. whats my chances of pregnancy?

Hard to guess: One cannot tell from her discharge. It can be hard to guess if a woman is pregnant because some of the symptoms seen in early pregnancy can also happen in non-pregnant women. A urine pregnancy test gives a very reliable result by 3 weeks after sex (3 weeks after when conception might have occurred), or 1 week after missing a period, or after having a "weird" period.