I just opened a Coinbase (CB) account. I purchased 0.0125BTC or $119.56 according to the internet. My issue is trying to send the total I bought to my Electrum account so I can make a payment online. I don't use BTC very often, so I'm not that familiar with how these various

When I try to send to my Electrum account with my wallet address. The CB send link tells me I only have $4.78 available to send? My Portfolio Balance is $119.82. Pending deposits-$115.01. Available to send $4.82? I have no clue what this "Pending deposits-$115.01" means?

Pending deposits
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BTC Buy on Jun 15, 2020
Available to send in 10 days
$115.01

Why isn't the BTC I purchased available to send right away...........why do I have to wait 10 days?

Any help appreciated.