Does aviane birth control make u gain weight? and i just started using this pill a week ago can i have inprotected sex

Weight gain?: Oral contraceptives do not have weight gain associated with them according to studies but each woman's chemistry is unique. Reaction to the hormones may increase hunger, fatigue, water retention but not all pills are the same. If needed, try others to find the best pill for you. Taken the same time for a week, the high hormone levels usually prevent ovulation. Worried? Use backup method x 21days.

It depends: In general, and if you're not at risk for stds, birth control methods pills become effective 7 days after starting them, but it does depend on when you started them and if you had unprotected sex earlier in the cycle. As for wt gain, studies that compared users of placebos(sugar pills) with users of older high dose birth control pills both gained the same average amount of weight over a year.