Help!! Lol

Nikki • 22. Pregnant with my first child and it's a GIRL!!! can't wait 💖 July 22 come sooner!
So my 3 week old baby girl is starting to do this tantrum I guess you wanna call it lol. Where I will feed and change her get her ready for mimis. She will fall asleep when I pat her back...but once I lay her down she starts crying outta hand. I'll pick her up and she's totally fine haha I'm a what do I do?😔 please help.