Is Lilly Potter even Harry's Real Mother?

[jojo_mcfields]

No: HPFGUIDX 32698

I have a question about the end of the last book when Potter and 
Voldemort were dueling and all people he had killed came out of 
Voldemort's wand in reverse order. How come James Potter came out 
first and then Lilly Potter? I thought in all those flashbacks James 
Potter was supposed to have fought Voldemort first and then Lilly 
tried to protect Harry. However, the book 4 duel shows that Voldemort 
killed Lilly first and then James. So, is there something I'm missing 
or maybe the woman holding the baby Harry at the end is not Lilly or 
what?The ghostlike James in the duel also told Harry that he was 
going to meet his mother, but did he specifically say "Lilly"?Is she 
even his real mother? 

"jojo_mcfields"