Is it normal for periods to get shorter on Nexplanon?

I've had Nexplanon for two weeks now. I got my period last Friday, which would be a day or two later than usual.

It's Monday now and it's almost completely gone. It was veryyyy heavy Friday night through mid-day Saturday then just got medium. Now it's very light. So this would make it 4 days long if it ends today.

My periods are usually about 5-6 days. Just wondering if this is normal! Not used to irregular bleeding.

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