have anyone had to take this shot before? i had 2 natural miscarriages at 6 weeks (1 year apart) so dr told me to get this shot as soon as i know i am pregnant next time. So i think i am pretty positive now that i am pregnant from my other post, but i still have 1 more day until my period supposed to come. is it too early to see doctor now? but i am very worried it i wait any longer idk if i can keep this baby. idk how this works with this shot. if anyone has experience please share it with me.