My LMP was 10/21. I had 3 days od mild spotting on 11/3, 11/4, and 11/5. I got a blatantly positive test on 12/3. The original due date was 7/28 with an estimated date of conception of 10/28. This all makes sense. The problem came when the original ob did a limited ultrasound...all of my pregnacies have measured small...(ie. normally measuring 20 weeks at 25 weeks pregnant). The new ob now says we have to go by the ultrasound measurement instead of LMP. My new due date is 09/3 with an estimated date of conception being 12/4 (the day after the positive test). This is physically impossible seeing as i couldnt have gotten a positive test before i concieved. The ob refuses to listen...because of this, she still hasnt given me the required rhogam shot and says if i am wanting to have a VBAC, they have to give me pitocin because they "cannot allow me to go into labor on my own"! This is getting ridiculous! The original due date puts me at about 32 weeks pregnant, and the new due date puts me at about 27 weeks pregnant. My 1st appt w the new ob will be tomorrow...how do i get her to listen and understand that this pregnancy is measuring the same as all my others and the new due date just doesnt make sense? Thank you ladies, and sorry it was so long!