Ok...I'm 41 and this is my first pregnancy. I went for an ultrasound Wednesday and doc thinks I'm not quite at 6 weeks because there was not a heartbeat yet. He said everything looked great though and not to worry. Well he should know that worry is my middle name!!  Anyway, I'm having cramps which he said is normal due to my uterus growing. And all the information I read online said it's completely normal. I also have had issues with my sciatic nerve in the past resulting in leg pain, tingling, and numbness, usually when I'm standing or laying in one spot. Is this all normal for this stage in my pregnancy?  I feel like I need to call the doctor but I also feel like I'm just being paranoid. Suggestions?  Advice?  Thanks!