Should I stop working !??

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Hey loves ! So I’m currently 15 weeks & 4 days pregnant. I am a full time hairstylist. I’ve never had any issue working except for now... Lately at work I’ve been getting really dizzy. This is the third time it has happen to me. I think it’s because I’m standing in one place for too long & smelling hair chemicals.. Today was probably the worst I’ve ever felt. I literally just wanted to stop doing my clients hair & cry because I was so frustrated with myself & because I felt soooo dizzy. I’ve spoke to my mom about & she feels like I should take a break from work. She said that I should rest & not force my body. My fiancé told me the same thing..... I’ve tried using a mask at work & I even set up a fan so I won’t smell the hair chemicals, but it literally doesn’t work. I eat healthy & drink plenty of water as well so I know that’s not the issue. I just think I’m over working my body but I’m afraid that if I take a break I’ll lose my clientele... I’m just confused on what to do. What would you if you were in my shoes ??