Discharge? Ovulation? Plan B

Hey so me and my boyfriend had sex during one of the days this app said i was fertile.We didn’t use protection and there was precum involved.I took a Plan B the morning after just in case there was a possibility I wasn’t ovulating yet (since this app is really just a guess).I genuinely can’t remember if I started to have discharge before we did anything.It’s been 3 days since I have taken the Plan B and I started to get a thick and stretchy discharge.Does this mean I wasn’t ovulating yet and the Plan B worked? Do i have a yeast infection? (It doesn’t burn or smell). Am I pregnant? Is this just normal and hard to tell and is it just a waiting game? please help cause I’m genuinely confused.This was my first time taking plan b and having unprotected sex so I’m not sure how this works.I’m not on any birth control and yes I do know that these decisions were stupid.Me and my boyfriend talked it out and decided we will never have unprotected sex again while ovulating and without bc.