So... I have been having steady periods for 6 months but have been irregular before... But i had sex on the day this app said ovulation... Now... No period..... I took a test but it saod negative but i still have that feeling looming over me..i get nausea sometimes.. And sometimes my favorite foods are making me sick... I guess what i want to ask is what should i do next

.. And what u guys think... Am i pregnant or not..? Because i just cant tell....