Girls, What over the counter medicine is safe to take when pregnant for severe morning sickness?

I'm 9 weeks and 3 days pregnant. I constantly am feeling sick to my stomach. Every time I eat I either feel like I'm going to throw up and don't or I do throw up. My doctor prescribed me some medicine but its reallyyyy expensive so I was hoping there was an over the counter medicine I can take to help with this constant sick feeling.
Girls, What over the counter medicine is safe to take when pregnant for severe morning sickness?
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