Effects of Trying to Conceive Using an Home- or Hospital-based Ovulation Monitoring on Stress

The goal of this observational study is to compare the difference of stress level and anxiety and depression between couples under home ovulation monitoring and hospital ultrasound monitoring.And whether it has a negative effect on the couple's sexual behavior.The participants were all healthy couples with fertility requirements from the reproductive Center of the First Hospital of Jilin University.The main questions it aims to answer are: * \[question1\] : Does ultrasound monitoring of ovulation increase stress levels and anxiety and depression in couples trying to conceive? * \[question2\] : Does ovulation monitoring affect couples' sexual function and satisfaction? Participants will be asked to fill out questionnaires three times over four menstrual cycles.