Just two days back, it was only around 6.5k unconfirmed transactions. I transferred around 250 USD to one of my trading accounts and I paid only 20 sat/byte fees that was recommended by the wallet service provider. I have just checked the fees now, it has become 30 sat/ byte due to the network congestion.
I found a nice resource which everyone can use before sending a transaction to determine the fees and avoid such situation.
https://bitcoinfees.earn.comHope this helps!