When should I retest?

K2

I took a test 3 days before my period and I looked at the test at the 5 minute mark and there was a faint positive and then I took a test this morning which is 1 day before my period and I got a negative so my question is when should I retest.

3 days before period

This morning

Is there a possibility that I could be pregnant I’ve been experiencing pregnancy symptoms like nausea, cramping, bloating, backache, and I even threw up Saturday Night