Is this the start of my period?

Ok so.two week ago hubby to be and I did the deed with protection . He didn't cum . Anyway fast forward my cycle is late. Took about 4 pregnancy tests a all are negative expect the one I messed up by trying pee on it again while it was processing the test. Yesterday I started what I thought was my period and it looked like it was. Today I've had off and on spoting like this photo. Should I still be worried about being pregnant or not? I have a Dr appointment on Thursday the 30th but my anxiety is going nuts. I've also been under a lot of stress lately