Based on the context and the answer, generate a question. 

Context: It can take a while , I just have to deal until it evens out . When I was younger it was disabling to have a period . Thanks to the pill it 's a minor annoyance . Weight gain sucks but it happens sometimes when you do things to your hormones .

Answer:

It is a side effect of their birth control pills .



Why have they started to gain weight ?