BBT chart help - 1st month

Am

This is my first month charting my BBT. Does this seem normal? It seems like it's fluctuating a lot. Could my bedroom temperature make a difference? Some mornings I wake up feeling cold (blankets end up not on me) or the opposite, too hot with the blankets on. I take my temperature as soon as I wake up, while still laying in bed, all I do is reach for the thermometer on my nightstand. Any insight would be great!