Jee nahi yadi is unsafe koshish ke baad bhee unhe periods huay hain toh pregnancy ke chance nahi hain. Lekin haan Yadi aap pregnancy ke risk se bachna chatay hai to kisi aur tarikay kay mukabley Condom ka istemal hi easy aur safe tarika hai. http://lovematters.in/hi/resource/safe-sex http://lovematters.in/hi/resource/fertility