No daytime naps


So my baby girl is 12 weeks old and EBF. She sleeps great at night (7-10 hr), but we are having the hardest time getting her to nap during the day. She normally will take one 2 hour nap in the morning, but in the afternoon she will only sleep 20-30 min stretches. Anyone else experiencing this? Any tips or pointers on getting her to nap in the afternoon? My 1st was a half formula half breastmilk baby, and she never missed a nap unless she was sick or it was interrupted.