Most of the time they will give you a pregnancy test before they give you one. It's always important to be honest when they ask if you had sex before you have gotten on birthcontrol.

If an IUD were inserted and a pregnancy were present, I think that there would be a high risk of a miscarriage, though there have been pregnancies that went to term after an IUD was in place. If you think you may be pregnant, you should not have an IUD inserted until you are certain you are not. If you have an IUD and think there is a chance you are pregnant, you should let your doctor know right away.

high risk like going through surgey, etc?

I mean that having an IUD could cause a miscarriage to happen if a woman were pregnant. It could keep the baby from attaching to the womb and growing; the pregnancy could be lost. It is important to tell your doctor if you have an IUD and think you might be pregnant.

Take a pregnancy test before getting the IUD. If you think you're pregnant and already have the IUD talk to your Doctor.

ok, and can take blood test for preg test and can tell if im preg by 3-4 week? i know i took pregnant test, they wont tell me until im 6-8 week preg

You can take a test now, but you could get a false negative if it is too early. You need to discuss it with your doctor, and be sure you are not pregnant before having an IUD put in. In the meantime, use condoms and a spermicide as an alternate form of birth control.