4 days late still negative tests


So for the past week I’ve been feeling some lower abdominal pain, bloating, nausea that goes away in minutes and a late period; I’ve taken 2 pregnancy tests but they both came out negative. My bf and I have been having sex unprotected but he’s been pulling out, I feel like I’m pregnant because of my symptoms but the tests are telling me something different.

Would really like some advice or if anybody else has been through the same symptoms or situation.