Help I'm so confused with clomid

Melia

So af showed late last night this past cycle was my first in 50mgs 4-8CLOMID so now my GYN bumped me up to 100mgs 4-8 so my question is I got my af last night about 9pm do I consider that cycle day 1??? It was very light ..... Didn't actually get a flow until this morning .... When should my first pill be ?