Hay, every bump shape is so different talaga, some moms show earlier, some later, and it really depends sa body type mo and kung first pregnancy ba or not! At 22 weeks, normal lang yan, but if you're worried about how it looks or feeling off in any way, best to check with your OB lang para sa peace of mind kasi they know your whole pregnancy history. One of my mum friends was nervous din about her bump at that stage, pero doc said lahat okay lang, and she felt so much better after. Don't stress too much, your baby's doing their thing in there!