Okay so here's my problem, I'm currently 18 weeks and 2 days. I had spotting and cramping at 17 weeks. The doctors said it was normal because my placenta was lying low. But they checked through ultrasound quickly baby was okay. But I have to go back on Thursday the 19th for an appointment with my obgyn and an ultrasound to check again. I'm kinda nervous I'll be almost 19 weeks will they do the anatomy scan by then or will I have to wait until exactly 20 weeks???  I'm not sure because they wouldn't say.. Any insight please.