Hi, No relation, sometime period start after year also. Weight gain is due many reason after pregnancy like
. When you not feeding.
. Hormonal changes
. Bad eating patterns
. Improper sleep
. Stress
And many more.
My opinion is to contact me directly through the link below
Next Steps
For more information and to contact me directly visit https://www.facebook.com/pg/doctorplanmydiet/about/
Thanks with regards
Dt.Ankita