1 Positive , Digital negative pregnant?

Sooo I had unprotected sex the 18 of April my period is 7 days late was due 27th of April took a test yesterday Around 4:30 -5 It was Showing negative I put it in my purse looked at it this morning it was positive Idk if it faint or cause it was sitting I took a clearblue digital today it said not pregnant && I still haven’t had my period I was having brown discharge headaches back pain more bathroom breaks && cramps I had a lul pink reddish bleeding the 21st of April I think any ideas ??