Am I pregnant

On September 17 we used the pullout method and we had sex again the 23rd and on the 26 my period came and lasted it’s usually 5 days and the next day I had sex but also later that day I had but light pink/red discharge the then light pink to brown the 1st light brown the 2nd and a little whiteish the 3rd, then I had sex again the 8th but that whole week I woke up with a slight headache, my back been hurting, I have bloated and sometimes gassy and slight nausea but it could be from the bad food I been eating lately but rn im gassy and slight bloating, in the morning I wasn’t but now I am, I had slight not noticeable cramping but my back still hurt. We had unprotected sex on all the days we did it but he pulled out, what’s the chances of me being pregnant or am I just thinking about it too hard ? Im not upset if I am tho, and I took a test and it came out negative too and my period is suppose to come in 10 days but I’m a little anxious . And now the symptoms are gone ??