My Ob tried to hear baby's hb at 12w and 1 day but couldn't pick it up. of course i panicked but he reassured me this was nothing to be concerned about. I stressed about it over XMas and nearly convinced myself I had had a missed miscarriage (I think reading too much about this does more harm than good) my uterus is definately growing so i feel lot better, however I am quite anxious about my appointment with the midwife in a week as I really want to hear the heartbeat - I will be 16 weeks then. Did anyone's breasts lose their tenderness at around 13-14 weeks. Mine have never really been sore, mainly firm. This has happened to me but they are still big and still look like pregnant breasts (this was another reason why I started thinking something was wrong until I read this was normal). I also get that dizzy feeling when I stand up and can't see for about 5 seconds. This seems to happen more so when it is hot and if I have been lying down