FTM question

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

So my boy favours one side. When he is sitting he is always leaning towards the left even when he is in jolly jumper and swing he always leans his head and body to the left. Is this normal or should I see a doctor?