I would like to know about pregnancy

Patient: My monthly periods are every month of 24th to 26th in dec 2014 before periods on 20th i had intercourse with my husband after that i did nt get my period iam feeling like by breast are enlarge little vomiting sensation and iam feeling hunger i would like to know chance are there to get pregnant and is it possible to get aborted

Symptoms: Vomiting sensation breasts enlarge