"I am not sure about calories per day, maybe 2500? I dont know I've never really calculated this stuff. (I am 5' 10'' 150lbs and pretty low in fat.) my partner is 5'2"."
If you are on the lean side, 2500 calories is probably not enough. As an example, I am 5'7" and 137#, and I burn ~4200 calories/day. I have dialed this in over many, many trips by study and then experimentation, with me as the guinea pig. I carry a little over 19 oz of food/day that provides 2650-2700 calories. I make up the deficit by gaining 3-4 pounds of body fat in the month before a longish trip like yours. 4 pounds of body fat contain 14,000 calories distributed over my typical 8-9 day trip allows for ~1550 calories/day to supplement my food. In total this provides in the neighborhood of 4200 calories/day. The alternatives are to either carry more food, which can potentially force you to use a larger pack or to slowly cannibalize your own body by burning up all available body fat, including that which protects your organs, and also muscle tissue. I'd recommend you either carry more food, enough to provide at least 3000 calories, ideally more, or consider putting on some fat in the run up to your trip. Most folks just carry more food, but I wanted you to at least know that there is another workable alternative.