Help!!! My period hasnt come yet...Am i Pregnant?? ?

Im 26 yrs and had 3 abortions in the last 5yrs. My last period started 27/sept last mth. Now its 28/oct and my period hasnt come yet. I havent had any menstrual cramps but my feels sensitive and Ive been sleeping alot. I do feel nauseus in the morning once in a while and crave for sour food n oysters. My mood swing has been rather low lately too...I had with my bf using protection right after I finish my period but there were few occasions the condom broke and i quickly ran to the bathroom to wash it off. So Im quite worried if Im pregnant coz there's no sign of period till now and still waiting...And if I am pregnant I dont know if i should keep it or terminate my pregnancy again. I would luv to have a baby but I dont know if I could be a gd and responsible mother towards my child...Any advise would be gd...Thk u.