Am i pregnant

[loola78]

ok so i had sex on the 28th September and he came in me, my period was due exactly 5 days later. I started bleeding on my due date but was not as it usually is, mine usually lasts for 5 days and are usually quite heavy. First day was abit Second day hardly anything Third day cramping with alot of dark blood. It has now stopped all together but have been laid up in bed for a whole day Sat with dizziness, dull tummy ache and constant feeling of wanting to be sick. Today i have been light headed and have alot of twinges going on in my tummy. Is there a chance i could be pregnant. Taking test tomorrow.