I had a u/s on 2/23. It showed I was 4 weeks. We could see the sac n fetal pole. I have my 1st ob Appt on the 15th n hoping they do another scan. Cant wait to see the heartbeat. not everyone shows a heartbeat at the same time. I wouldny stress it so much. Just relax n wait till the next scan. I know easier said than done. Keep us posted.
5w2d is really early, and most times nothing can be seen until at least 6 weeks. I know it doesn't seem like a big time difference, but in early pregnancy, a day or two can make a world of difference. If your LMP was 1/16, you should technically be 7w5d BUT that doesn't mean you ovulated right at day 14/15. You could have ovulated 2 weeks late which would throw everything off. I would wait at least another 2 weeks before having another scan (unless you start having painful cramping or bleeding). Best of luck to you!!