@Abigail May,
You aren't going to be seeing a ton of guns at hospitals. Going to a drug store is not the same as going to a hospital anyway. Don't call. Go. Get out of your home and go. Don't be embarrassed. Pharmacists have heard it all before.
As for your boyfriend's penis size, I doubt anybody here cares.
That is not the point. Is he sticking it into your vagina? From any angle - facing you, behind you, underwater, in the conservatory, it does not matter. If he is sticking it in there and ejaculating (do you know what that means?), then you can potentially get pregnant. Even if he is not ejaculating, there is a (small) possibility of there being sperm on him.
Sperm meets egg = pregnancy.
Vaginal itching is
never a symptom of pregnancy. But go to a pharmacist anyway so that the itching can be taken care of and you can get a home pregnancy test and learn how to use it for your own peace of mind. And get a referral to a doctor while you are there, so you can get on some reliable birth control and get some in-person counseling. Asking these questions of a doctor is not an embarrassing thing; don't think of it that way, okay? Doctors answer these questions every single day.
Will your vagina go back in place after having a baby? Yes. Women have babies every day, and you do not see their vaginas hanging down, now, do you? Are you exactly what you were like before having a baby? No.
By the way, if you are so concerned about vaginal stretching, and hospitals, then why are you having what I presume is unprotected sex? With this comes the risk of pregnancy and sexually-transmitted diseases. If you are so concerned, then why risk that?
Furthermore, I am
this close to declaring you a fraud and a troll who's just playing online. You are old enough to have sex, but your ignorance about your own body is appalling. Are you a young child having sex? 13 years old? 15? 11? And even if you are over 18, why the hell aren't you asking your own mother about her pregnancy with you if this concerns you so much?
Penis in vagina = pregnancy possibility. Penis in anus = no pregnancy possibility. Either way, there is the possibility of catching a sexually transmitted disease.
I am mainly answering this for anyone who is lurking who maybe has similar questions, as I feel there is value in answering these questions. I am well aware that there are cultures which provide pretty much zero sex education, particularly for women, and often those cultures shame them about their own bodies. I get that, I do. But women should be able to talk to other women, to their mothers or sisters or aunts or friends. And women should not be afraid of getting basic medical care. A pregnancy without prenatal care is dangerous to the baby. A pregnancy terminated in a back alley because someone is too afraid or embarrassed to go to a doctor or hospital or clinic is a tragedy waiting to happen, in the form of infertility and even, possibly, death. And unprotected sex invites sexually transmitted diseases which, untreated, can kill.
I am sorry the world is like this. I answer these questions for those scared and embarrassed women and then I shake my head as I look at a calendar and realize it's still 2014 and this is still happening.
Sigh.