Welcome, Marchmommy! And congratulations on your pregnancy--sounds like it has been a tough one so far, but you will get through it. And you've got lots of support here to lean on when you need it!
First off, the abbreviations. You can find everything you need HERE: http://mothering.com/discussions/showthread.php?t=2080
Secondly, the constant illness of early pregnancy . . . I feel your pain, mama! I am just starting week 13 today, and have been throwing up constantly for over a month. People keep asking me if I am starting to show yet, and I have to tell them that not only am I not gaining weight, I haven't even started gaining back the weight I've LOST since becoming pregnant! Don't worry--your baby will take what it needs from your body's stores. (Note: if you are getting dehydrated--your urine is dark and in small quantities, your skin is dry--or if you are feeling dizzy, talk to your midwife/doctor.)
As far as the cystic fibrosis gene goes, that must be a scary thing to deal with. It is tough that your partner doesn't have the insurance to get tested . . . maybe you can check into community health resources in your area and see if there is a sliding-scale clinic he can go to? And as for the abnormal pap smear . . .
to you, mama. Here's hoping that no news is good news, and that your mind will be set as ease soon.
I don't really know what to tell you about your boyfriend's behavior; truly, the only one who can explain his reactions adequately would be him. I WILL say that every guy adapts to dramatic change in his own fashion, and perhaps for your guy that means doing some late-night carousing as he comes to terms with the new responsibilities and reduction of freedom that is coming in his future. However, if it is really upsetting you, I would suggest talking to him about it . . . pick a calm, quiet time when you are feeling emotionally steady, and sit him down for a little chat. You have every right to feel supported during this pregnancy and beyond, and hopefully hearing from you that his behavior is upsetting you will enable him to make some positive changes.
Let us know how it goes, and check back often; we're always here to listen/chat!