Could Delayed Periods With Light Brown Discharge Mean I'm Pregnant ?

I have been trying to get pregnant for so long. BUT when the day came that my cycle was suppose to come on i got prepared and put on a pad. When I went to the bathroom no blood was on the pad only pink n brown light blood when i wipe. But not much though. It was like that for the whole five days, but sometimes nothing will appear on the tissue. This has never happen to me before. Did I do it? Could I be pregnant!