6 Whatapp calls and messages from a number with an yemen area code. Did I get hacked?

Hi guys! Today I got 6 whatsapp calles from a number with a yemen area code. I did not answer them! And switched my data of until he stoped calling. Then he wrote me 5 messages, which I can’t translate with any website. The whatsapp profile looks like a normal profile with a name and a profil picture. I blocked the caller and enabled two factor identification on whatsapp and Icloud. Is there any way this could be a hack? And if yes, what can I do against it?