I am 22 years old. My weight is 33 kgs and height 5ft. I have very irregular periods. This time I had some close time with my friend but we dint do intercourse also he dint ejaculate. Since then I missed my period and after one month I got spotting for 2 days n then after a week periods started which lasted for a month. I had heavy bleeding. I was on pause mf which dint help. I had an ultrasound which showed everything normal with polycystic ovaries and endometrial thickness 5mm. 10 days after ultrasound my periods continued. Then my doctor gave me regestrone for 15 days. After taking one tablet periods stopped. Is there any possibility for me being pregnant? Is it all because of hormonal imbalance? Is anything serious? Do I need to worry? If it is due to hormones please suggest me good diet to control pcos.