You mean how soon can you take one? 2 weeks after the unprotected sex is the earliest but you may get a false negative.
I can't believe you could have a baby inside you and all your worried about is being a fat bride.
No, I wouldn't get it, because if you aren't at risk for it then you probably won't have any problems. The test can even give a false positive for downs. My doctor has seen many women get a positive and end up delivering perfectly healthy babies with nothing wrong with them.
I'm also 11 weeks...
My friend just stopped taking her birth control to get pregnant. She hasn't told the guy she's sleeping with and they aren't even together. She's trying to lock him in, but what a lot of people don't realize is the younger you are and the more you aren't ready for a baby, the harder it's going...
Any test can give you a false negative if you use it wrong or test too early. Every test, including a dollar store test, will show a true positive if used right when there is enough HCG level in the system.
First response worked the best for me though.