Optic migraine

Hello everyone! I will be 8 weeks pregnant tomorrow. I had a slightly frightening experience today, nothing I had experienced before. I was at work, on my feet then all of a sudden my vision started to change in my left eye. It was like "shattered glass", if I could describe it best. I googled these findings and saw "optic migraine". Has anyone experienced this while prego? Do you think I should be worried? I see my doctor tomorrow morning.