Not trying? How?

Hey ladies, recently I've seen lots of women talk about getting pregnant the month they stopped trying. What do you mean by stop trying? Did you just not take opks and bbt but had sex every other day? Or just not think about it at all and had sex whenever you wanted/felt like it? I'm starting to get desperate and don't know what to do! Also how do you lower your stress levels? I'm so scared of not trying and still not getting pregnant 😭