Glow and glow nights not matching?

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Hey guys, so I got a positive preg Ana you rest last Tuesday. Glow is saying that I’m 5 weeks and glow nurture is saying that I’m two days behind and 4 weeks and 5 days? Why is this? How do I edit it and which one should I go with? No, I haven’t been to the doctor yet but I have an appointment.

Thank you!