Could I be pregnant ?

On January 6th I took a plan B. Then on January 11 I started bleeding weirdly for multiple days, then after my vagina was tichy at some point and dried up tiny balls that were white were coming out and it hurt to have sex (what was that? Dried up ovulation ?) and then I don’t know how when is my ovulation suppose to happen after all that mess. And my calendar says I ovulated this Saturday but could that be correct? I’m afraid because I didn’t use protection but he pulled out 5-10 mins before he came any advice or help? Im worried about when I’m ovulating and why I had dried up sticky balls of white coming outside of my body