I remember i had implantation cramps when i first got preggy. I didn't even know what's that. I never have cramps that bad before period, so i know something is not right. So after a week i tried using pregnancy kit and found out i was preggy. But... baby didn't stay after 6 weeks though. Anyway am TTC now, so am looking out for implantation cramps again. But is it a must to have such cramps??