Confused by Glow Notification

Ashley • I`m 34 and a SAHM to our 3 1/2 yr old son. TTC for 15 months and now Baby GIRL is due October 14th!!!!
So my fertile week started on the 27th. Today I got my LH surge and logged it in Glow. I got a notification just now saying that my fertile week just started and I should try to BD for the next few night with March 7th being the most important. That's not what my Glow calendar shows. Which is right? I don't want to miss the most important day!