I have a 28 day cycle. I had sex with my boyfriend on a fertile day. A week after the sex I started having cramps and a week later I had nausea, no vomiting, and I got really tired. Out of no where I had back pain and headaches an shortness of breathe. My period is supposed to come 2 days from now and usually 2 days before I get my period I get cramps and I haven't gotten any of that.

Normally no signs at one or two week pregnant. Except sometimes light spotting after a few days.

The first real sign will be a missed period. But even then, you need to wait till period is 14 days late, to do first test. So for now, you wait another 16 days and do first test , if no period.