I had my first ultrasound at 8w4d and the sonographer was worried about how low the baby and placenta were so she scheduled me for another ultrasound at 12 weeks which was yesterday. She checked the baby and baby was measuring well, Hb of 166, but my cervix is already starting to open slightly. There was also fluid in the opening. My Dr was not in the office but she talked to another Dr and he said that he wouldn't jump to conclusions yet because it's so early but "suggested" no sexy time and no strenuous activity. I'm terrified now that every little cramp means it's getting worse. I see my dr OB Thursday. Anyone else have a similar experience?