First, Third and Fifth Friday visitation question

My son's custody papers state he can pick up his son at 6PM on the First, Third and Fifth Friday of each month. This year Feb. had 5 Fridays in it, so he picked him up three times. March 7 was the 1st Friday in March. This would have been back-to- back visits. His ex said it was not his week end even though the papers say 1st, 3rd and 5th Friday at 6PM of every month she refused allowing him to pick up his son. Is there a gray area there? Is it possible that he will have 2 back to back visits each year when a month has 5 Fridays? Thanks to any one who can help clarify this. A Texas Grandma

[olive]

it is the first, third and fifth even if that allows for back to back once a year