confused, clomid help?

Stacey • 23, married 💕 miscarried in July at 10w4d 💔 pregnant with rainbow baby due June 2017 👶🏻
Right I got my period at about 8pm last night, It's 10:17am now, is today considered day 1 or 2 with me starting AF last night? Need to take clomid on day 2 but confused wether that's today or tomorrow?