short one row

[Ginnyb]

I am doing this pattern:

Instructions

Light Gray
•With Light Gray, CO 145. Join & PM, being careful not to twist st.
•Place cable panel markers: K64, P2, PM, K12, PM, P2, K to end.
•Work 13 more rnds in pattern
•K 64, P2, SM, Cable 12 back, SM, P2, K to end
•Work 8 more rnds in pattern

Switch to Medium Gray. Starting with #3, work as for Light Gray.

Switch to Dark Gray.


I thought I bought enough yarn, but I just started this pattern and I ran out of yarn of the first color after completing 7 rows after the cable instead of 8....will this work with only the 7 rows or will it throw the whole thing off????

Thank you for any help

Ginny