Birth Control-Help!

TaPanga
I've started taking the mini pill Mononessa last Sunday, and I'm experiencing nausea. I haven't thrown up, but rarely there are times where I feel like I'm going to. I take my pill at one, right after my lunch, and I start feeling sick around 9-10 at night. My questions are, how long does will the nausea last? A few weeks or a few months? What are some tips that I can use to help ease my nausea? And,If I take it before bed with a snack, will that help with the nausea? I hate this nausea feeling at night, it's causing me to lose sleep. Please give some advice, I'd really appreciate it.