Tummy time

Delaney • Mom of a sweet little boy 👶🏼 baby #2 on the way 💙👨‍👩‍👦 🤰🏼

I don’t know why but my 5 month old now is refusing tummy time and when I do put him down he screams and won’t even lift his head up anymore he just chews on his hand. Any idea why this could be?