I can’t tell you for sure it’s a polyploid. If you got one. It’s nothing bad at all. 
A friend of me had a polyploid and it was a really nice special bud. 
They say the thc % is bigger in a polyploid. 
If you want you can contact ElegantBuds here on growdiaries. He’s the one who had a polyploid. If you have a question he will be happy to answer. Good luck