Can't feel baby A move since she's engaged???

Last week one of my little girls has decided to make her way into my pelvis and she was moving a lot but for the last two days I can only feel my baby b moving. (This is probably TMI) I wanted to see if I could feel my babies head from my vagina and I only had to put my middle finger up to my knuckle and I felt her head and my cervix that I could probably put 4 fingers in. Should I go to L&D?