I have sex with my girlfriend without precaution but i have not ejaculated inside her but we have enjoyed 3-4 times contineously another day she feels live vomiting but she does not do vomit. same evening she has taken unwanted72, but even after that she does not vomited but now after 6 days she fells her brest loose. then was it a chance of pregnancy of not? i also want to know then after how many days of sex we can do home pregnancy test? we are very afraid of this please help us soon. we dont want pregnency issue..