diff --git a/src/app/[slug]/submit/page.tsx b/src/app/[slug]/submit/page.tsx
index 03d297b..846c297 100644
--- a/src/app/[slug]/submit/page.tsx
+++ b/src/app/[slug]/submit/page.tsx
@@ -2,7 +2,7 @@ import { ProfileForm } from "@/components/Form"
 import { db } from "@/lib/db"
 import { getAuthSession } from "@/lib/auth"
 import { notFound } from "next/navigation"
-import { GCED_START } from "@/config"
+import { GCED_START, LAST_SEMESTER } from "@/config"
 
 interface PageProps {
   params: {
@@ -33,11 +33,13 @@ const page = async ({ params }: PageProps) => {
         {subject.name}
       </h1>
       <ProfileForm
-        PreselectedSubject={slug}
+        PreselectedSubject={slug.toLowerCase()}
         isAdmin={isAdmin}
         generacio={session ? Number(session.user.generacio) : GCED_START}
         semester={
-          subject.semester[0] === "Q" ? parseInt(subject.semester[1]) : 8
+          subject.semester[0] === "Q"
+            ? parseInt(subject.semester[1])
+            : LAST_SEMESTER
         }
       />
     </>
diff --git a/src/app/api/semester/route.ts b/src/app/api/semester/route.ts
new file mode 100644
index 0000000..604ab83
--- /dev/null
+++ b/src/app/api/semester/route.ts
@@ -0,0 +1,21 @@
+import { LAST_SEMESTER } from "@/config"
+import { db } from "@/lib/db"
+
+export async function GET(req: Request) {
+  const url = new URL(req.url)
+  const acronym = url.searchParams.get("acronym")
+
+  if (!acronym) return new Response("Invalid query", { status: 400 })
+
+  const semester = (
+    await db.subject.findFirst({
+      where: { acronym },
+      select: { semester: true },
+    })
+  )?.semester
+  if (!semester) return new Response("Subject not found", { status: 404 })
+
+  const results = semester[0] === "Q" ? parseInt(semester[1]) : LAST_SEMESTER
+
+  return new Response(JSON.stringify(results))
+}
diff --git a/src/components/Combobox.tsx b/src/components/Combobox.tsx
index b7258ed..2c02287 100644
--- a/src/components/Combobox.tsx
+++ b/src/components/Combobox.tsx
@@ -1,5 +1,5 @@
 import * as React from "react"
-import { Check, ChevronsUpDown } from "lucide-react"
+import { Check, ChevronsUpDown, Loader2 } from "lucide-react"
 
 import { cn } from "@/lib/utils"
 import { Button } from "@/components/ui/Button"
@@ -24,10 +24,12 @@ export function Combobox({
   options,
   value,
   setValue,
+  isLoading = false,
 }: {
   options: Option[]
   value: string
   setValue: Function
+  isLoading?: boolean
 }) {
   const [open, setOpen] = React.useState(false)
   return (
@@ -43,7 +45,11 @@ export function Combobox({
             {value
               ? options.find((option) => option.value === value)?.label
               : "Select..."}
-            <ChevronsUpDown className="ml-2 h-4 w-4 shrink-0 opacity-50" />
+            {isLoading ? (
+              <Loader2 className="mr-2 h-4 w-4 animate-spin" />
+            ) : (
+              <ChevronsUpDown className="ml-2 h-4 w-4 shrink-0 opacity-50" />
+            )}
           </Button>
         </PopoverTrigger>
         <PopoverContent className="w-[200px] p-0">
diff --git a/src/components/Form.tsx b/src/components/Form.tsx
index 3810275..bb5fd16 100644
--- a/src/components/Form.tsx
+++ b/src/components/Form.tsx
@@ -22,8 +22,8 @@ import { Combobox } from "@/components/Combobox"
 import { Checkbox } from "@/components/ui/checkbox"
 import { ApuntsPostCreationRequest } from "@/lib/validators/post"
 import { uploadFiles } from "@/lib/uploadthing"
-import { GCED_START } from "@/config"
 import Fireworks from "react-canvas-confetti/dist/presets/fireworks"
+import useSemesterHook from "@/hooks/use-semester-hook"
 
 const formSchema = z.object({
   pdf: z.any(),
@@ -113,6 +113,7 @@ export function ProfileForm({
   const form = useForm({
     resolver: zodResolver(formSchema),
   })
+  const { data, isLoading } = useSemesterHook(form.watch("assignatura"))
   useEffect(() => {
     if (PreselectedSubject !== "AllSubjects") {
       form.setValue("assignatura", PreselectedSubject)
@@ -296,6 +297,24 @@ export function ProfileForm({
     ? (generacio + Math.floor((semester - 1) / 2)).toString()
     : undefined
 
+  useEffect(() => {
+    if (!isLoading) {
+      if (
+        data === -1 ||
+        data === undefined ||
+        data === null ||
+        !form.watch("assignatura")
+      ) {
+        form.setValue("year", "")
+      } else {
+        form.setValue(
+          "year",
+          (generacio + Math.floor((data - 1) / 2)).toString(),
+        )
+      }
+    }
+  }, [data, isLoading])
+
   // ------------------------------
   return (
     <Form {...form}>
@@ -320,6 +339,7 @@ export function ProfileForm({
                     options={tipus_any}
                     value={field.value}
                     setValue={field.onChange}
+                    isLoading={isLoading}
                   />
                 </FormControl>
                 <FormDescription>
diff --git a/src/config.ts b/src/config.ts
index cd179dc..c86acef 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -1,2 +1,3 @@
 export const INFINITE_SCROLL_PAGINATION_RESULTS = 4
 export const GCED_START = 2017
+export const LAST_SEMESTER = 8
diff --git a/src/hooks/use-semester-hook.ts b/src/hooks/use-semester-hook.ts
new file mode 100644
index 0000000..467d5d6
--- /dev/null
+++ b/src/hooks/use-semester-hook.ts
@@ -0,0 +1,32 @@
+import { useState, useEffect } from "react"
+import axios from "axios" // You might need to install axios
+import { LAST_SEMESTER } from "@/config"
+
+const useSemesterHook = (subjectAcronym: string) => {
+  const [data, setData] = useState(LAST_SEMESTER)
+  const [isLoading, setIsLoading] = useState(false)
+
+  useEffect(() => {
+    const fetchData = async () => {
+      setIsLoading(true)
+      if (subjectAcronym === "") {
+        setData(-1)
+      } else {
+        const response = await axios.get(
+          `/api/semester?acronym=${subjectAcronym}`,
+        )
+        setData(response.data)
+      }
+      setIsLoading(false)
+    }
+
+    if (subjectAcronym !== null && subjectAcronym !== undefined) {
+      // Assuming subjectAcronym can be null or undefined initially
+      fetchData()
+    }
+  }, [subjectAcronym])
+
+  return { data, isLoading, setIsLoading }
+}
+
+export default useSemesterHook
diff --git a/src/lib/utils.ts b/src/lib/utils.ts
index a199a3f..1a8cbf8 100644
--- a/src/lib/utils.ts
+++ b/src/lib/utils.ts
@@ -2,6 +2,8 @@ import { ClassValue, clsx } from "clsx"
 import { twMerge } from "tailwind-merge"
 import { formatDistanceToNowStrict } from "date-fns"
 import locale from "date-fns/locale/en-US"
+import { db } from "./db"
+import { LAST_SEMESTER } from "@/config"
 
 export function cn(...inputs: ClassValue[]) {
   return twMerge(clsx(inputs))