Are theses signs of pregnancy?!

Well one week after my period i had sex, the condom broke, Now almost four weeks later i am cramping really bad, shapr pains, my boobs are sore on the sides if the wind blows it hurts and they are heavy, my belly is hard down where the cramps are! i woke up at five am and the pains was really bad, someone please tell me its been four weeks and i havent had my period,Www@Answer-Health@Com

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