Changed Due Date

So I just found out today that the doctor changed my due date like 2 months ago and I didn't even know. My original due date was Dec 4th well now its Dec 10th. So that means all my post were 6 days ahead. So from week 9 to week 15 I posted on the first day of that week so it wasn't 9 weeks and 6 days it was only 9 weeks. My next post is going to be Thursday June 30th because they said they won't change the due date anymore so next Thurs. I'll be 16 weeks and 6 days. Just take the 6 days off of the other posts. I was thinking bout doing that but then I would mess up the dates on the posts themselves.

So old due date was Dec 4th and new due date is Dec 10th.