Advice anybody? 😢❤️

Hi everyone, so I just turned 18 i am 13 weeks pregnant with my first pregnancy, I am extremely skinny around size 0-4, I am anemic and am not too strong , since getting pregnant I’ve lost 5 kilos I used to weird around 51kg and now 45 or less, the baby has been measured small since my first scan around 9 weeks, and still hasn’t caught up, also I cannot eat or drink anything happy if I keep one meal per day down, I am feeling really bad, and blacked out 3 times yesterday, I just wanted to know if this has happened to anybody, and if their baby came out healthy, my only worry is the baby not making it through or at this point me, no rude comments please girls, I’d just like some advice :( ❤️❤️