Confused 😔

I'm looking for opinions. I'm not ttc but I don't know where to post this. So I'm one day late on my period (I know it's only one day but still) and since having my daughter my period has been spot on. I took 2 cheapy tests a week ago and had a vvvvfl on both. I then took 3 clear blue with 1 negative, 1 faint positive and 1 clear but not dark positive. I then took 3 first response the next 2 days with all clear negatives. Took another 2 cheap strips and got two positives. Then went and bought another cheap test and got negative. Then I bought another clear blue and got a negative. I've had a killer back, boob pain, nausea, change in discharge, loose stools, headaches and food aversions. I am craving sweet things and bloated but that can also be my period coming 🤔 please help! I'm on no contraception and partner pulls out (I know this isn't the best way to prevent)