Pregnancy symptoms ?

So I'm 18 days late , yeah almost 3 weeks. My period was supposed to come May 8th and it is now May the 26th on the the 23 I woke up feeling sick with nauseas during the whole day until the evening I've been like this ever since but just randomly during the day now. All the things I used to love eating are just not my favorite right now , I can't eat them. And my nipples are just the definition of sensitive .Am I experiencing pregnancy symptoms or am I crazy .👀