sleeps btw breast while breastfeeding

Maria
Hi all! I'm having trouble with the schedule of my baby. She is 3 weeks old (😍 aawwww!) and when I breastfeed her she falls asleep 😴 in between breast! So, if she was 8-10 minutes on one side, she falls asleep for like 30-45 minutes and then wakes up tobreastfeed  from the other side!!! 
Has anyone else had this problem? Any advice 🙏? 
😊Thanks!!!
Maria