You're at the top of the ribbing, adding stitches to the first row of the body, or back or side, right? As someone already said (I can't see the posts while I'm typing, darn it!) make sure you're counting the stitches and not each rib. Sometimes it helps to draw what you're trying to understand. You could do a standard knitting chart, or you could use K and P and M, or you could draw hearts for the knits and dashes for the purls--whatever works for you. Once you see it in front of you, it'll make sense.
I'm not a big fan of writing "rib 28". I know that's in a lot of patterns now, but "work 28 stitches in k1p1 ribbing" just makes more sense to me.