It shoul be fine but always take precaution because semen can cause contractions, happen to me. But you are still early in the game. Its still a good idea to talk to your doctor like the other ladies said:)
Normally it is safe thru your whole pregnancy but it would be best to talk to your doctor since you did have spotting! Need to make sure the baby is ok.
Did u tell your doctor u are spotting only your doctor can answer this correctly...