diff --git a/index.php b/index.php
index 7ba6bc3..0da376f 100755
--- a/index.php
+++ b/index.php
@@ -282,10 +282,32 @@ $german_weekdays = [
                 </div>
                 <p class="text-muted">nächster Termin:</p>
                 <p class="text-muted h3 fw-bold mb-2"><?= $german_weekday . ' ' . date('d.m.Y H:i', strtotime($row['meeting_date'])) ?></p>
-                <div class="mt-3 mb-2">
-                    <button class="btn btn-sm btn-outline-primary" type="button" data-bs-toggle="collapse" data-bs-target="#rescheduleForm" aria-expanded="false" aria-controls="rescheduleForm">
-                        Terminverschiebung vorschlagen
-                    </button>
+                <?php
+                // Prüfen, ob der aktuelle Benutzer bereits einen aktiven Vorschlag hat
+                $has_active_proposal = false;
+                if ($row) {
+                    $check_proposal = mysqli_prepare($conn, "
+        SELECT 1 FROM meeting_reschedule_proposals 
+        WHERE meeting_id = ? AND proposed_by_user_id = ? AND status = 'pending'
+    ");
+                    mysqli_stmt_bind_param($check_proposal, "ii", $meeting_id, $logged_in_user_id);
+                    mysqli_stmt_execute($check_proposal);
+                    $result_proposal = mysqli_stmt_get_result($check_proposal);
+                    $has_active_proposal = (mysqli_fetch_assoc($result_proposal) !== null);
+                    mysqli_stmt_close($check_proposal);
+                }
+                ?>
+
+                <div class="mt-3 mb-2 text-center">
+                    <?php if ($has_active_proposal): ?>
+                        <div class="alert alert-info alert-sm mb-0" role="alert">
+                            Dein Terminverschiebungsvorschlag befindet sich noch in der Abstimmung.
+                        </div>
+                    <?php else: ?>
+                        <button class="btn btn-sm btn-outline-primary" type="button" data-bs-toggle="collapse" data-bs-target="#rescheduleForm" aria-expanded="false" aria-controls="rescheduleForm">
+                            Terminverschiebung vorschlagen
+                        </button>
+                    <?php endif; ?>
                 </div>
             </div>