Should I be concerned??

23 weeks 3 days today... I've been feeling my sweet girl move around since about 17 weeks. Movements and kicks are definitely becoming stronger and more regular. She actually got on somewhat of a "schedule" the last two weeks... Bein VERY active in the morning and at night, as well as occasional movement throughout the. Day depending on my activities. But since the day before yesterday her movements are minimal, only feeling her in the morning to early afternoon. Is this change normal? Do I need to call my dr?