Is It Normal To Have Heavy Menstruation When On Clomid?

Hi I m 36 and took clomid for the first time starting feb.2nd it was days 3-7 on my period. I took ovulation tests and it was positive for ovulation on feb 13,14. I have been cramping all month. I started having heavy extreme bleeding on feb 21 and 22. Is it normal to have 2 huge periods on this? Should I be concerned?