Hi Cuttinal,
Generally they say spotting is normal in the 1st trimester, unless you are also in pain, but it is a good idea to call the EPU at your hospital to put your mind at rest. I am experiencing the same thing with a little pain, so I am having a scan tommorow to check everything is OK. It is a little scary but the doctors say they think it should be fine, and the fact I am dealing with it is really helping me to relax.
(in fact i am quite happy that I amgetting a scan before 12 weeks!!)