Not sure. This is not something that most of us can easily answer. The theoretical answer is that it might increase fat deposition to the existing lipomas due to the estrogen. However, I doubt that it should hinder you to getting pregnant. I know this is not the best answer, but not sure if ...
Lipomas are benign fatty tumors that occur under the skin and less commonly within the muscle. They are associated with mild discomfort and a lump underneath the skin. It is always best to talk to an expert plastic surgeon to determine whether the lipoma is possibly a cyst or a tumor or hernia....
Most lipomas on the scalp are asymptomatic. However if the lipoma is exerting pressure it is possible there could be some hair loss. Removal of the lipoma is typically quick and with a quick recovery.