My husband and I have just started trying in July. My period is usually in time. I have an average cycle of 31 days. Yesterday it should have shown up but it's still on here. I've taken 2 hpt. One in Saturday and one this morning both negative. But today I thought for sure my period started because I felt something. So I went in the bathroom and wiped. There was this milky stuff in there. I transferred it to my empty toilet paper roll cause you couldn't really see it. Does anyone know what this is and why I could possibly have it?