First Pregnancy

My husband and I just started trying to have a baby.. I came to visit my family while he had some work stuff to do.. a week after I got home it's been continuous nausea.. my stomach is hardening and is tender my boobs hurt..and my back is killing me..but no vomiting... I took several pee test all came back negative.. I'm starting to look pregnant... after being 10 days late I had the world's lightest period which only lasted 3 days. I just am nervous and curious if anyone else has felt like this..