hi , i am a 24 yrs old guy , full time student , On march 17 i was coming from my school which 2 miles away from my home. I was watitng at the red light on a rainy day . and i heard some tire scratching sound like some one is applying a brake very hard. then the next moment , the car behind me struck me from the behind and did a great damage to my car. and i was just waiting at the red light and then we exchange our information but the moment i did not had any insurance and they guy he even did not ask me for my insurance , but i got alal of his insurance paper,. but i went after the accident and within 30 minutes i bought an insurance , but now i am scared that my insurance will think that i got insurance after the accident so they might will not help me . i am confuse please tell me as s oon as possible , its still not more then 24 hours . please help me i am poor but i have insuracne now. from geico . i havent call them ffor claim , so please guide me .,the fault was 100% of the guy who struck me from behind.