I am 38 weeks pregnant (will be 39 in three days) and my husband and I had sex this evening. Almost immediately when I went to the bathroom there was a tiny bit of brown/light red discharge-ish junk when I wiped. About an hour or two later when I went to the bathroom I noticed a small, white, mucus looking, clump in the toilet. I think I may be loosing my mucus plug. Could sex have caused this? Also, any chance that I will be going into labor in the next day?