Hi,
Welcome to the ehealthforum. I am glad to help you out. Iâll suggest doing a serum pregnancy test also and in case thatâs also negative, then the possibility of pregnancy is not there. PCOS can also give rise to the symptoms which you are suffering from. However, other causes like an acute gastritis can also produce similar symptoms. Iâll also suggest getting an ultrasound of the uterus & pelvis to look for any other cause of these symptoms. Please do consult a gynaecologist as itâs not possible to make an online diagnosis.
I sincerely hope that helps. Take care.