Hello, I would be happy to help you with your question.
There are many cases where women are pregnant and have implantation
bleeding that they mistake for a period. If you had conceived last cycle, then a pregnancy
test would be an accurate way of determining whether or not you are pregnant. You need to do this test now and repeat it in one week if you are still feeling this way.
I hope that this helps. If you have more questions, please click on "ASK ME A QUESTION" link above to directly ask me a question!