Anti depressants and pullout method

(Warning explicit content) My partner is on antidepressants so it is hard for him to cum. Most of the time when we have sex he actually doesn’t cum at all. I’m not sure if he precums either. Has anyone accidentally gotten pregnant from this kind of thinking? I feel like it’s slightly safer than regular pull out bc accidents aren’t as likely to happen. I’m just unsure about precum. Just wondering if any other girls have experienced this