I Have Hemiplegic Migrains Started When I Was 15 Years

I have hemiplegic migrains started when I was 15 years old and they have continued with getting worse in my 20's and now tapering off as I am in my early thirty's. My question is I am pregnant now and it seems that I am getting them more frequently due to the pregnancy since I am limited on medications to take and my OB dr really doesn't know much about hemiplegic migraines that he really doesn't know what to recommend that I take. Is Excedrin or Ibuprofen safe for hemiplegic migraines and during pregnancy I am 16 weeks pregnant, or should I just stick to Tylenol? Last question should I ask to see a neurologist to help me during pregnancy with these types of migraines?