Bbt charting newbie

So I went to my gyno today. He wanted to talk to me about my results from my ultrasounds and blood tests I had done since I had a missed miscarriage in October and a chemical at the beginning of June. Everything came back normal. I mentioned that I feel as though I had low progesterone. He gave me basal body temperature charts and told me to start temping. He wants to see my charts for 3 months and then he said we will be able to tell if I have a progesterone issue and if I do he will then put me on clomid. He told me the basics about needing to get at least 4 hours of sleep before temping and temping as soon as I wake up. Is there anything else I should know about temping before I mess this all up? Lol