Irregular Fetal Heart Rhythm?!

I just had my 25 week appointment and the doctor said my baby has an Irregular Fetal Heart Rhythm after listening to his heartbeat on the Doppler. It was skipping beats.

She said she is not worried and to come back in one week to check on it again.

Does anyone have any experience with this? I feel like one week is too long to wait to see if my baby’s heart is ok! I don’t drink any caffeine but I do eat chocolate.

I lost my last baby at 21 weeks and I just can’t imagine anything happening to this one. Advice please!