The best way for you to know if you are pregnant is to take a pregnancy test. They would def show a positive if you indeed are pregnant. If you get a negative then you really need to call your OBGYN because there maybe a underlying problem. Please call them and keep us posted.
I seriously doubt that your pregnant! That was six months ago how can you not know that your pregnant. Your body would have changed incredibly your belly would be round and huge. Your not pregnant and if you was very concern why have u not tested! Besides you getting your period after having sex with your the next month indicates your in fact not pregnant. Maybe you should contact your doctor so they can regulate your period!
if you were pregnant you wouldn have goten a period for the month after you had sex. if you "fear" pregnancy then dont have sex or use birth control. and you would be 6 months pregnant. YOU WOULD KNOW IF YOU WERE PREGNANT. if your scarred of being pregnant you should have taken a test 6 months ago. go to the doctor and get a blood test. that will give you an accurate result.