Another question: so it means the transaction may be dropped if the fee is too low?
Quick answer: Yes.The fees now are quite lower compared to the past weeks that we've got. Post your TXID and let's see how much you've paid for the fee if it's way too low with what's mempool's fee being asked.
The only way now is to wait for the transaction to be confirmed, it may take 1 or 2 days 😅
Or it may take longer than that.If you really need to check, just go offline and open wallet. 24 days is a loooong time, I know 
You won't believe me guys, mine was more than that and the network really tested my patience back then.