hugs hun
i am in exactly the same boat as you!!!
Get migranes when O'ing and AF but not when pg!
THis time around got them really bad whilst b/feeding- damm hormones!!!
They have now put me on beta blockers and so far it has settled them down . They arnt totally gone, but my hormones are alot more stable
definately talk to your doc about this medication option
imagrin didnt work for me, but these seem to assist a bit!!
HTH