Should I test?

Had unprotected sex on Feb 18th. It's been 7 days since my negative blood test (HCG less than 2) on the 2nd of Feb. Cm has been sticky, tinged yellow, creamy or stringy... and always have a tight, bloated feeling around my lower belly. Have also been gassy and tired, and super mild aches in my labia minora, sharp pains from my belly button and random sharp pains on one side. Haven't had a period since stopping the pill on the 4th of January.