Hello ma'am and welcome.
I would first like to ask if your doctor has instructed you to continue with metformin
despite of having a regular cycle? Please clarify this with your doctor and discontinue thw same if your cycles are regular.
Also initiate iron and folic acid
supplements as you are trying to conceive. Metformin can cause a change in your menstrual cycle, so please visit a doctor and check on your pregnancy
status immediately before continuing with the metformin.
Hope this helps.