You need to call your doctor and find out. You will probably have to take a class and become certified to be able to administer the shot.

what size needle do i have to use, does it hurt less to use two different needles, one for taking the medicine out of the vial and the other for giving the sht whats better

does it hurt to tighten your mucles. where is the best place in your arm or your butt

is it better to lay down or stand up to give myself the shot

I'm sure the instructions with the shot tell you what size needle to use.
It has been my experience that it does hurt worse if you tighten the muscle for ANY shot; you should be as relaxed as possible.
I prefer shots in my arm. The soreness seems to go away quicker and I don't have to worry about putting pressure on the area when I sit, like I would if it was in the buttocks.
Sitting or standing is fine for shots. I can't see why you would lie down to administer one.
A little secret about this site: if yours is the last post shown, you can edit it to add more information instead of posting several times.
Good luck with the shot. I thought about learning so I could administer my own allergy shots but couldn't fit the class into my schedule.

can you tell me how to give myself a depo shot in the arm

what to expect for my first pap smear, what all will the doctor do, is it better to have a female do the exam

Generally, I'm most comfortable with female gynos but I've been seeing a male doctor for the last four or five years. He has a really good bedside manner and takes the time to explain everything before he does it: this will be a little cold, you will feel a little pinch, you might feel a little pressure when I...
For an exam the doctor will come in and discuss why you came to see them. Then they will leave the room so you can disrobe. You will take off everything, including the bra and put on a hospital gown so that it opens at the front. The doctor will return and tell you how far up or down to lie on the table. If you have a male doctor, there will be a female nurse or assistant in the room as well. The doc will place a little lubricant inside you, then insert the speculum which wil probably be ICE COLD. (One female gyno warmed mine up for me- hated to see her go but she changed practices.) Then he will take a swab of your cervix, the back of your vagina, with a long Q-tip. This is your pap smear. The sample from the swab will be tested for abnormal, precancerous or cancerous cervical cells. Then the doctor will insert two or three fingers into your vagina and press on your tummy. Next, the doctor will give you a breast exam. Then the doc will leave so you can undress. They will return and discuss any prescriptions or follow up appointments. You should get a call within a week to let you know if the pap smear was normal or if it was abnormal. If it is abnormal, you will need to come back in for an additional procedure similar to a pap smear called a colposcopy.
I can't tell you how to give yourself a shot. When I was on the depo shot I would have mine done at the doctor's office.

what size needle did they use and did they use on or two needles

They used one needle. I don't know what size it was.

can a self pap exam make you lose your virginty

No, a pap smear will not cause you to lose your virginity. Your doctor needs to know that you are a virgin, but that should be in the medical history and various forms that you have to fill out. I was still a virgin when I had my first pap smear and the doctor did not use a speculum- the metal device that opens a woman's vagina for a pap smear.

i get the shot in my hip i find it hurts less there