Cause birth defects symptoms and conditions

Okay so I have been really moody one minute I am fine and the next minute I am yelling at my 9 month old for crying, which is obviously suppose to happen. I have only had the mirena for a little over a month and before it was inserted I was so good with my daughter. When she is finally asleep I realize how mean I have been to her, considering she is a baby. I have been a mad woman and hate it. I thought I was just stressed but I am realizing I was not acting like this before the mirena when I was stressed out. I also had to change my Mary Kay make-up thinking that that was what was causing the acne. The other make-ups didn't help I was still getting acne, even without make-up. And lastly what is driving me crazy is the bleeding and bloating. I am still bleeding. I usually wear thongs and have had to go and buy a ton of regular underwear, just so I can ruin them. I hate it so much but really can't have another kid for at least 2 years because my husband is coming home from Iraq and has been exposed to chemicals and such that can cause birth defects... so what am I suppose to do for a good effective birth control... please help!

I just went onto: http://www.drugs.com/yasmin.html just to see what they had to say about Yaz, (I am no-longer on the terrible thing, see my previous post) but I saw something really scarey on the site, namely: "This medication can cause birth defects in an unborn baby", now I'm sure they are referring to falling pregnant whilst taking the medication, but my concern is that it appears to take a number of month for the drug to leave your system competely once you have stopped taking it, so when is it safe to get pregnant after coming off it??? this is a very very scarey!!!! des anyone have an answer???