I AM DRIVING MYSELF CRAZY

so I got a faint positive on first response Thursday morning...faint positive clearblue Thursday evening. ..retested Friday morning and they both seemed lighter. .came home and took another first response Friday around 630 and it was darker then all of them...clear blue this morning faint but there...I just want them to get darker and definitely positive. .I am a day late...I also took an ovulation test just because I had one and that was positive. ..I have a weird metal like taste and nauseous and head aches..I'm praying it's not a chemical. ..