Advice please

Got my birth control taken out on the 6th. Got a positive opk on the 9th. Me and my fiance have sex often, and dont use protection. Occording to time of ovulation AF was due the 23rd. Still no AF. I've had cramping, backache, fatigue, headache, and major bloating. Tested last week and negative. Should I test again or could it just be my body going back to normal?