Opinions...

So my last period ended on 6/22. We had unprotected sex on 6/30. We are at the point where we wouldn't mind having a baby but don't want to try like crazy yet, but will not prevent it either. That following week I started getting bloated. I have since been on and off bloated, on and off cramps, some headaches, some lower back aches, nausea and some light headedness. Have just not been feeling myself energy wise either. My little friend is due to come visit tomorrow, but no preview signs it's coming yet. I didn't receive any spotting or anything. I tested last today and it was negative...but I just don't know if I believe it with what's been going on. Advice from any would be great. I do not want to go to the drs yet so that is off the table. Thanks...