Birth Control for IVF

Al

Anyone put on birth control before <a href="https://glowing.com/glow-fertility-program">IVF</a>? If so, why? The nurse at my REs office said they want me to call when I start my next period to get me started on birth control but she didn’t say why? And of course, I was flustered with all the other info she gave me so I didn’t ask.