Can the birth control pill cause mild feelings of depression?

Yes it can, depression's one of the listed side effects of birth control pills. Physhicians consider that the main side effects (depression, increased apetite therefore sometimes weight gain, decreased sexual drive) should last for no longer than 3 months after starting the administration of birth control pills.
When i started taking these pills, i did experience mild depression during the first 2-3 months but then everything went back to normal. However, not all women taking pills will experience these side effects.

So I've read...
it really depressed me when the wife forgot to take it!
Yes, they can!
Sometimes though rarely. The increase or decrease in estrogen or progesterone can affect the natural chemical balance in your system in rare cases.

Please go see your doctor and explain the situation.
You might just need a different kind of birth control.
yes!! it really depends on whos taking it i had to change brands several times because he hormone dosage was to high and i would constantly get sick. as for the depression, it really does cause depression, it is really mild but still depression is depression
Yes, it's quite possible. The contraceptive pills are made from hormones & hormones can alter a persons mental state. If it's causing you a problem, go & see your doctor coz there are hundreds of different contraceptive pills on the market & there's bound to be one that suits you better.