I take antidepressants and mood medications is that cause for why my period is late and should i go see a gyn?

Some women who are usually very predictable can skip a cycle occasionally. The amount of delay is unpredictable and there are no real symptoms other than the delay & negative pregnancy tests. I would not assume it is from the meds. If it goes past two months with a negative pregnancy test many OBGYNs would offer meds to bring on a menses. By that point it would usually be quite heavy.