What’s the chance

If I ovulated around the 3rd or 4th and had sex the 30th what are my chances I can conceive?my eve app said I would ovulate around that time but I just got off birth control and should be expecting a period (I had the implant do you can get pregnant right after removal) so I went based on my past periods last year, but around the time I had sex I had started getting a different kind of discharge, more white and had the sticky kind that sticks between your fingers If you know what I mean, I’m just trying to get peoples opinions, I’ve been having cramps and felt a little nauseous this week, my boobs have felt swollen and my boyfriend told me they look bigger they also have felt harder and heavier