So I think I've ovulated, this morning I wiped it was a pinkish brown discharge mild stomach cramps and nausea, what's wrong?

Wait and see. Some patients experience mittelschmerz which is a mild pain at the time of ovulation. Some patients may have a small amount spotting at that time. If the cramping and nausea continue then it is very unlikely to be related to ovulation and should be evaluated by your doctor. If this was a temporary one time thing then it may have been ovulationl.