Stretch marks

So many women are telling me they’re 100% preventable during pregnancy. I’ve done EVERYTHING. I’ve used coconut oil three times a day and I mix it with vitamin E at night. I usually drink like 4 liters of water a day too. And guess what?! I still got them and they’re still coming in now that I’m 7 months along. Please tell me most moms get these and I’m not crazy because none of my friends got stretch marks during pregnancy. 😔😩