Pregnancy question

Help...So I had unprotected sex, well really my bf pulled out bc he didn’t want to use a condom that night. This was on Jan. 10th. It was my last day of ovulation according to this app although Clue said otherwise. Anyways my period was supposed to come Saturday but it’s been four days and it hasn’t showed up. I have been having cramps since last week but they come and go. Yesterday I had really bad cramps all day, meanwhile today no cramps at all. My breasts are kind of sore and my back hurts Also OMG i have been wetting my panties so much it’s insane and it’s white discharge. But I haven’t had any kind of bleeding at all so idk what is going on and why my period is late. I took 2 pregnancy tests and one gave me a faint positive but I don’t think it was accurate because i left it sitting for a while and came back to it. Then i tested again today and it was negative so idk can someone please help or suggest something because I am going crazy