Obese and blood thinner

Anyone here is obese and pregnant? And has been prescribed blood thinner to reduce the risk of getting pre-eclampsia? Im in that situation but the blood thinner is causing me to vomit more than usual and when i vomit, its literally squeezing my stomach till only clear mucus comes out. And it gets very painful. When i go to the gynae, they say its not a must to continue but encouraged too. So anyone have been obese during pregnancy but didnt take blood thinners? Did everything turn out fine? 🥺