13 weeks pregnant? Or not pregnant at all?

well some woman cant hear there babys heartbeat untill there about 20 so weeks,i still have not yet heard my babys heart beat and iam 24 weeks pregnant. as for the uterus part its may not be bigger enough to feel yet, also you may have a inverted uterus that sits back and tilts like mine does so it makes it harder to find anything out at all. also if they cant feel it before your about 18 weeks id be asking questions, and as for the not having a ultrasound part at all, thats not very good because when your pregnant your ment to have a 2 big ultrasounds which are for the baby. so if i was you i would be going and seeing a different doctor who knows what they are doing.