Two weeks ago i had a scan and was told i was around 5 weeks, gestational sac seen and small yolk sac, went back today for a follow up and the yolk sac has grown but she said im about 5-6 weeks? Im really confused by the dates. I dont have a clue when i ovulated as i had the implant removed march 25th and fell pregnant. I had my first positive 6th may.