Chance of pregnancy?

Okay so I’m well aware that any time you have unprotected sex there’s still a chance of getting pregnant. But. I had a molar pregnancy and had the D&C in September. I got the shot the same day of the D&C. I haven’t gone back for another method because of my mom being too busy. I also didn’t want any hormones because of my depression. I bled the whole time since the D&C until about two ish weeks ago. Yesterday I had sex. Pull out method. I was wondering if there’s a high chance or maybe not? Idk im aware there’s a chance and I don’t want rude comments.