When should I worry about sickness?

Chantelle
A question for mums, im 8 weeks 5 days pregnant with my first!, I have sickness about 4 times a day, after foods and drinks.... When should I contact my midwife? I've tried everything from sipping drinks, eating little and often, eating ginger biscuits, dry food, drinking water.....Help?! Thankyou in advance 😘👶🏼