11 weeks tomorrow and can't find heartbeat....

🖤Mommy🖤 • ♥️Son-7/00♥️Daughter-9/04♥️Daughter-11/12♥️👼-9/15♥️Son- 8/16♥️Son- 3/18♥️👼- 4/19♥️👼- 5/19♥️ Son- 2/20♥️

Ok... So I bought a pocket fetal Doppler. It came today and I was super anxious to find my littles heartbeat.. I tried 3 times with no luck.. has anyone else had this problem? Im not sure if it's being placed in the right spot but honestly I've tried everywhere. I can't find a heartbeat above mine (120's)... Can anyone give me tips? Places to try? Im at a loss 😞