Both mine would have stories in bed, then a breastfeed lying down then be asleep quickly. At that age they would have a lunchtime nap for 1.5-2 hours, never asleep after 3pm and bed by 7ish. (Although dd used to push this to about 8:30 as she got older and before she stopped napping).

Do you lie in bed and feed her? What time is she going to bed?