If you had a negative pregnancy test after your last period on 9th February and are now experiencing spotting since the 12th of March, it may be worth considering taking another pregnancy test to confirm your status. Spotting can sometimes occur during early pregnancy, so it's important to rule out this possibility. However, it's also possible that the spotting could be due to other factors such as hormonal changes or an irregular menstrual cycle. If you're concerned about the vaginal itching you've been experiencing since this morning, it's best to consult with a healthcare professional who can provide an accurate diagnosis and recommend appropriate treatment options. They may conduct further tests or examinations to determine the cause of your symptoms and provide you with the necessary guidance moving forward.