Thank you for your question. There is no method for checking virginity. There is a myth that checking for an intact hymen in a woman can say if she is a virgin or not but this is entirely misleading. The hymen can break because of physical activity like cycling and sports and some women can have flexible hymen which never breaks. Bleeding with intercourse also does not prove virginity. In males also there is no proof of virginity. Too much importance is given to virginity where more emphasis needs to be on respect and loyalty. Any relationship built on lies will struggle to survive the normal ups and downs of life. Virginity or not, it is important to put the partners satisfaction first. Maybe try reading ' New male sexuality'by Bernie Zilbergeld to understand things better. best wishes