Heart palpitations pregnancy?

I am 5 weeks pregnant that's what glow estimates I go tommorow to my appointment has anyone experienced heart palpitations iv been having them and I feel like I have shortness of breath I don't have a cough or anything my nose is alittle congested but no fever at all is the heart palpitations and shortness of breath normal when pregnant. It happens when I'm sitting and standing when out of no where my heart fluters it's kinda scary I'm 20 and just want to make sure the baby is okay