boyfriend on eve

Hey yall, so my bf is on eve because he likes to track my cycle with me but is there any way of him finding out my username witjout me telling him? I dont want to keep posting anonymously but i dont want him knowing my username either lol. I trust him completely but sometimes i like getting a girls perspective on things that i dont necessarily need him to know! Im new to this app so i dont know if people you know can find you. And yes i use a fake name