Spotting on 9 weeks and 3 days

Is it normal to have a spotting in my 9 weeks and 3 days? I was at work then i felt dizzy so i rested for a couple of minutes and i had a severe tummyache that lasted like 30 mins or more. I went directly to my ob and she said that the baby's position it's not right so she required me bed rest and gave me duphaston for the baby.. do you guys experienced this too? What should i do to avoid this? :( #1stimemom