You had a high pregnancy risk and have 78 hours to get Emergency Contraception. However, the earlier you take it, the better.
Usually, Emergency Rooms or 24 hour clinics, which are open at all times, including weekends, store Emergency Contraception, too.
I'd recommend that you check Not 2 Late: Emergency Contraception for providers of Emergency Contraception in your area and call around to ask before you head out there, so you know you are not making any trips in vain.
It's essential that you get emergency cotnraception, dear, even if it will mean you will have to ask your mom for assistance in getting it.
Emergency Contraception can lower your pregnancy risk significantly and is less risky for your body and cheaper than an abortion or pregnancy & raising a child.
It might be difficult to tell your mom you need her help in obtaining it.
However, keep in mind that telling her in a few weeks that you actually are pregnant and needing her help might be even more difficult.
We strongly encourage talking with parents, and I hope your saying you mom "would kill you" is an exageration. Unless you have strong reason to fear for your health and physical safety, you should tell your mom.
Alternatively, if you feel you absolutely can not tell her, there is another adult who might help you get to a clinic or other provuider for emergency contraception, maybe an older sibling or aunt or good friend. If there is public transport in your area, you could get to a different clinic that way, too.
However, by all means, get yourself the emergency contraception.
Spike: Well, I'm not good and I'm okay.