Losing weight and on the pill

I was told I needed to lose weight and get on the pill to regulate me if I wanted to get pregnant again. So my husband and I made the decision to get on the pill and get a gym membership for me. It’s been three months I’ve on the pill and about one month of me going to the gym and eating well. I’ve lost six pounds and feel great. But now I’m not sure I want to get pregnant. My period is regulated and I’m seeing the difference in my body and energy level. We have a 15 year old and a three year old I’m feeling like I’m done having kids. Not sure how to have that talk with my husband.