No. A LCN result will not provide information about the type of body fluid the DNA came from. On the other hand, this information may be inferred via the source of the sample. For example, there's a good chance that a sample sourced from a bedsheet is semen.
If you're interested in this Google John Lowe's involvement in the McCann case. There was an initial suggestion that the LCN technique might be usefully applied to a hired vehicle involved in the case, but John Lowe, a leading UK forensic service scientist made it clear LCN techniques would be inconclusive due to the prevalence of key DNA components in the population as a whole