I’ve been experiencing symptoms of me being potentially pregnant but I’m not to sure and I was wondering if anyone could give me answers..

1: can u experience tenderness in the stomach within the first week?

2: is it normal to have pain in your stomach?

3: is a little bit of tenderness in Brest a sign of being pregnant?

Please reach out to me because I would like to know more and I took a pregnancy test but it was negative I think it’s too early to tell