2 miscarriages

I am 27 with Graves diease, B- blood and have 2 healthy boys, 7 and 1 yr.  Since my 1 yrs old, I have been trying to get pregnant.  I got pregnant in January and 13 weeks later miscarried at home.  I didnt get the rhogram shot.  In July I got l pregnant again, and 12 weeks later, miscarried again.  I didn't get the rhogram shot again.  This totally slipped my mind.  My mother brought it to my attention today and now I am totally freaked out.  I guess my questions are:  Can I still get the shot 9 weeks after the miscarriage? I still have breast milk?  is that making me miscarriage? Is it in my best interest to get the shot?  If I get pregnant again, is it true I will miscarry or have a still birth full term?  9-1-08 I had the worst period ever.  I was an emotional wreck.  I sleept 16+ hours a day.  One minute I would be laughing, next crying, and next a raging *****.  I was very distant and rude, mean , "loveless" to my husband.  Next anxiety kicked in real bad.  Whats going on?  Any advise will really help.  ......oh ya one more question,  this might sound stupid.....I read that rh- women and only birth male babies?  is this true?