Yadi is unsafe sex ke baad bhi apko periods huay hain toh aap yeh maan sakti hain ki aap pregnant nahi hai lekin yaad rakhiye. 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