Confused with net calories?!?!

1. No - MFP does not factor in exercise because some people can't
2. That's how MFP works. You eat your exercise calories to get back to your ORIGINAL deficit
3. Plug your stats in (height, weight, age, gender) and MFP will figure that out for you (before exercise)...........or see *****

*****TDEE is your current maintenance including exercise

http://scoobysworkshop.com/calorie-calculator/

For 1 pound a week remove 500 calories a day

For 1.5 pounds a week remove 750 calories a day

1.5 pounds a week is pretty aggressive for 29 pounds to go. You want to strength train to keep existing lean muscle.....but not enough fuel makes that hard for your body to do

1. Does the activity level factor in exersise?

No

2. When I add in exersise to mfp the calories get bigger!?! I wanna lose weight so I wanna eat less?

MFP calculates the calories in a way that allows you to lose weight without exercising. 1200 calories net is the lowest recommend calorie minimum, since your body still needs nutrition to survive you need to have this as net calories.
If you eat 1200 calories, but burn 300 in a workout, you only eat 900 calories net. If you don't eat back those exercise calories, you deprive your body from necessary nutrients and could get malnourished.

3. Can you guys help calculate how much calories I should eat to lose weight?? With 45 min of cardio for 6 days? And strength training for 3 days??

Use the TDEE calculator at scooby workshop (google it).
When calculating TDEE your exercise calories for the entire week are included and divided over the week.

The other option is to set MFP to a 1.5 pounds weekly Weightloss and log your exercise.
Do eat back your exercise calories.

I would suggest you just follow what the TDEE calculator indicates for about a month and see what happends on the scale.
If your weight goes up in a month, eat less. If it stays the same, eat less. If you loose, well that is good.

Also, knowing how much the number on the scale changed can help you find your true TDEE (maintenance) calories.
1 lbs fat gain/loss equals 3500 calories.
So if you want to loose 1 lbs a week, eat 500 calories under maintenance.
If you gained two pounds in that month, you were eating 250 calories over maintenance.

Hope that makes sense and helps you a bit more.

ETA: in case you didn't notice, the calculator gives you TDEE, bmr and a calorie goal that matches the goal you put in, so based on how much fat you want to loose.
Second option, eat 500 calories less than your TDEE indicates.
Exercise is accounted for in TDEE.
Don't worry about eating under BMR, what do you think those calories you had stored as fat are being used for.

So MFP does not calculate TDEE.

To calculate your TDEE you need to use a calculator like the one from scooby workshop.
In activity level choose the second or third option. (See, activity plus exercise).
It might actually between those two, since it skips from 1-3 hours light exercise to 3-5 hours moderate exercise.
I would start with the 1-3 hours one, run with it for a month and see how much you lose. If it is more than 2 lbs eat a bit more to stay at a healthy loss.

I can't say how to scale exercise calories to your bmr, because then you would be leaving activity out of the equation.
(Perhaps look up the difference between bmr, tdee and neat (the method mfp uses)).

500 calories will net you a pound a week loss, 750 calorie will net you a 1.5 pound loss. So if your tdee is 2800, and you want to lose 1.5 pound a week, eat 2050 a day.

Yes you will gain some weight, but it should even out over time. This stuff isn't rocket science, track what you eat for a month, if you are losing at what you are expecting great. If not, eat less/move more, if you are losing to much, eat more.

Real life data, aka tracking for a month and seeing what happens, will trump any calculator and what it "thinks" you need to eat.

Things to keep in mind since you haven't started working out yet, is limited weight loss and possible weight gain. When you start working out don't be surprised if you don't lose weight the first month. You body is going to be holding onto water, glycogen, etc to heal your muscles.

Weight loss is not linear. Trends are what you are looking for. Keep it trending in the right direction and don't panic over small gains from day to day.

If you don't own a food scale, you are not counting calories. You are just guessing, and setting your calorie needs on a guess is not a model for success.