I have a 26 to 29 days periods cycle. Had first IUI on CD12 (after rupture of 1 dominant follicle) and second IUI on CD 14 (after rupture of remaining 3 dominant follicles). After 6 days of first IUI, I have a slightly heavy feeling in vagina, as If I will get periods. Yesterday I had small jerk like cramps in the vagina. It is too early for periods (about 8 to 10 days away). No other symptoms. Could I be pregnant? Does period like pain happen even in early pregnancy?