Thanks for posting your query at DoctorSpring.com
Can you please upload the blood work and scan ?
It is not possible to not have a period for 3 months and for everything to be normal !
Once you upload the reports, I will tell you what else needs to be done.
Also, what is your height and weight ?
Before October , did you have regular cycles ?
Are you on any kind of hormones / medications ?
Looking forward to hearing from you.