Yes, you can use Otrivin for congestion while trying to conceive. However, it is recommended to first try nasal cleaning with saline water (Sinus Rinse, Hydrasense) as a first step. Pregnant women should try to minimize the use of medication. If nasal cleaning is not effective enough, Otrivin Original Formula can be used for a maximum of 3 days to avoid the risk of rebound congestion.