Wow, Stein really did NOT do her research on what happens in a hospital after a woman is sexually assaulted. When the doctor is telling Anna that she's been in the hospital for about ~24 hours after being raped and having her throat cut, he tells her, "'Because there was evidence of penetration, we had to run pregnancy tests. They were negative. However, there are other tests that will take longer to process. We'll screen for sexually transmitted diseases, hepatitis...' A brief hesitation. 'HIV.'" 
 First of all, if you had sex 24 hours before, you can't be pregnant. It's not physiologically possible. It takes days for the sperm to reach the egg, fertilise it, and then for the egg to migrate to the uterus and implant. Pregnancy is defined as starting with implantation, which is what triggers a series of hormonal changes in the body that doctors can measure. Medical science doesn't generally weigh in on when life begins, but it does define when pregnancy begins, and it's not for at LEAST a week after sex. 
 So if you go to the hospital after a sexual assault, the only reason they would give you a pregnancy test is to determine whether you were *already* pregnant prior to the assault, which may be important information for women trying to decide whether to have an abortion or carry the pregnancy to term. But it *wouldn't* be for the purpose of telling the woman whether the rape has left her pregnant. 
 What an ER *would* do for a sexually assaulted woman is offer her emergency contraception (EC), which is essentially a higher dose of the same hormones found in regular oral contraceptive pills (levonorgestrel [+ sometimes ethinyl estradiol]), taken up to 5 days after sex to prevent pregnancy. That's PREVENT pregnancy, not terminate one. EC has no effect on an existing pregnancy. See Princeton's awesome Emergency Contraception website for more info about EC: http://ec.princeton.edu 
 Second of all, a decent ER wouldn't be taking a passive attitude towards the possibility of HIV infection, either. There's a treatment called post-exposure prophylaxis (PEP) that can be started up to 3 days after sex (or exposure to blood, infected needle, etc) to significantly reduce the chance of ending up with an HIV infection. (Like EC, the sooner you start it, the more effective it is.) It's a course of antiretroviral drugs and rather than a one- or two-dose EC treatment, it takes up to 4 weeks and can have some nasty side effects, but it's thought to be fairly effective at reducing the risk of seroconversion. 
 That's enough Reproduction 101 for today, kids. I'm getting back to the book now that I've got that off my chest. 
 Update 4 July 2011: 
 OK I've finished reading it, and maybe I shouldn't be so indignant over Dr Avery's failure to offer emergency contraception and PEP to a rape survivor, since there are a lot of ways that he goes off protocol when handling Anna. That's partly because Dr Avery recognises that she's been attacked by a vampire and is turning into one herself, and partly because (view spoiler)[Dr Avery is one hell of a creepy guy. (hide spoiler)] 
 Overall I liked this book. I'd avoided it for a long time because I hate books that are narrated in first person present tense. (I know everyone raves about the Hunger Games but I just can't get past the first page because of the stupid verb tense!) But once I got a few pages in, I hardly noticed it. I only give it three stars instead of four because I didn't get that feeling of connection with any of the protagonists that makes me want to keep the book on my shelf to re-read in a couple of years. No one is especially unlikeable (except where they're supposed to be), but no one stands out as especially appealing or memorable, either, except for the bad guy, and as he is dispatched at the end, I can't look forward to more of him. Too bad, because he's a really good bad guy -- but for that reason, it's really satisfying when he gets offed. Anna is smart and self-sufficient and not too whiny. However, her relationship with her boyfriend Max is a complete mystery (and not in a "tell me more!" sort of way, more like in a "Huh? How can she love a guy she sees only every couple of months, can never reach on the phone, and cheats on so easily?" sort of way). And several reviewers here have commented on the way the author describes the psychological aftermath of rape, which doesn't ring true for me. (The one author who does this particularly well is Patricia Briggs -- holy moly is that scene ever powerful when Mercy crawls into the bathroom: it makes me feel like I'm going to cry just thinking about it.) 
 But I digress. Overall the writing was solid, the story moved along at a nice pace, and there was a good mystery that was wrapped up neatly enough to satisfy at the end, but there were enough unsolved mysteries to make me want to read the next book in the series. A solid entry in the UF genre, and I suspect that when I read more books in the series, I'll develop more of a feeling of connection with Anna and crew.