Personally my doctor has never told me this but if my doc did I would adhere to it. Becuase you have had spotting she is probably considering you at higher risk for miscarraige and intercourse could contribute. If I were you I would wait until your doc gives the all clear. Possibly in the second trimester.
I would totally do as they say......I was 9 weeks when I M/C'd and hadn't had sex b/c I was afraid........I wouldn't risk it esp. if they are telling you not to.
When I spotted and bled during my first pregnancy, the doctor advised us not to, so we did not. Definitely stick with what they say. If the situation improves, they may give you an all clear to go ahead as normal later on.
i agree i would not risk it yet