Period post-miscarriage

So I am almost six weeks post-miscarriage from a chemical pregnancy at about 5 weeks. Prior to miscarrying my periods were somewhat irregular but I was normally getting at least one a month. I still have not gotten a period since we lost the baby and the doctor said it could take up to three months to come back.

I was just wondering if any of you had similar experiences or how long it may have taken you guys to restart your periods after a chemical?

Any advice is appreciated!