Could My Cramps, Nausea, Back Pain, And Headache After Ovulation Indicate Pregnancy?

i ovulated feb 13th had sex feb 14th. i normally cramp when i ovulate. Feb 15 the cramps go away. Feb 16th they are back and they come and go. I’ve had a dull headache , dull back pain , and i’ve been nauseas. The cramping is still here and it comes and goes.