Welcome! Charting has been an invaluable tool in my TTC journey, and i hope it's the same for you.
First you need a thermometer. Mine is from Target. You can tell the difference between it and the regular kind, becuase the package will say 'basal' and the thermometer is pink. This is the only kind i've used. I temp vaginally because i snore and it cools my mouth down.
I recommend some kind of charting software. Good places are
Ovulation Calendar and Ovulation Chart - Fertility Charting and
Taking Charge of Your Fertility I use both. Fertility friend is free and available only online. Ovusoft is a one time payment, and you can download it to use on your computer even if you don't have internet access to put in your info all the time. This has been very useful on trips.
Another thing to start noticing, is your vaginal sensation, and observe anything thats coming out on your panties. Different consistencies of cervical mucous mean you are different places in your cycle.
I know if sounds soooo complicated, but it becomes second nature. I've charted for over 2 years.