Heart murmur during pregnancy.

Kaylah • Mummy to 2.5 year old girl and pregnant with no.2
Hey ladies, I had a dr appt at my midwives today I'm 14 weeks, she checked my heart and asked if I had been experiencing shortening of breath which I have, she told me I have a heart murmur which can be totally common and innocent in pregnancy but is sending me for a heart ultrasound to rule out any other factors. Has anyone else experienced this and everything has been okay?