can I BBT chart?

syan. • 𝚃𝚃𝙲 #𝟷 “𝚊𝚏𝚝𝚎𝚛 𝚎𝚟𝚎𝚛𝚢 𝚛𝚊𝚒𝚗 𝚌𝚘𝚖𝚎𝚜 𝚊 𝚛𝚊𝚒𝚗𝚋𝚘𝚠.“ 𝚙𝚛𝚊𝚢𝚒𝚗𝚐 𝚏𝚘𝚛 𝚖𝚢 𝚛𝚊𝚒𝚗𝚋𝚘𝚠. 🌈

Ladies I need help, I want to start charting and using BBT’s but I don’t know if I should, the reason why is because I sleep very late, and sometimes wake up through out the night, or sleep less than 8 hours so I don’t know if the charts would be accurate. Could I still bbt even with a messed up sleeping schedule?