Ned hang on to her if she has no issues. I have a cow 16yrs out of Rainmaker, she has never missed a season and pumped out a few grand champs at our local fair.
Very slow calving up here too. several loses due to still birthing and some to weather south of me where the wind really howls in the Tanana delta region. I got two more to go
On occasion we have one of those onery mother suckers, I give them 2 chances then they are gone. Last one puched me 6 feet into the snow bank mid-april, thought i was a gonner too, so did she! I won she went down the road in the fall