Struggling with morning sickness

I’m almost 7 weeks pregnant and really struggling with morning sickness. I work 4 days a week and have a toddler and I can’t keep up with housework or anything. My dr doesn’t want me to take ondensteron unless absolutely necessary so I haven’t used it at all this pregnancy. I’ve been reading that antihistamines can also help and are safe for baby. Does anyone have any positive stories of using medications? I don’t know how much longer I can continue. I also have gestational diabetes and so have to wait 2 hours between meals which makes the nausea/vomiting worse. Any tips or words of support would be really appreciated.