Similasan during pregnancy?

I took a pregnancy test this morning that came back positive, and am a little worried about some cough medicine I took a couple of weeks ago. It is called Similasan Cough Relief, and it is a homeopathic treatment intended for kids (I bought it for my 3 year old originally, then caught her cold). I am wondering if anybody has any information on any effects that it might have on the pregnancy or if it is safe. The active ingredients are Belladonna, Drosera, Laurocerasus, Rumex crispus, sonega officinalis, and verbascum thapsus. The inactive ingredients are Purified water, Sorbitol, Sodium chloride, potassium sorbate, and citric acid.