Help!

I don't know what's going on. I've been charting my bbt, taking opks and my lines are so dark right at almost ovulation so my husband and I bds last night to be on safe side and we used preseed, well I laid there 20 mins got up when pee, cleaned up and laid down to go to sleep, woke up this morning feeling wet so I went to bathroom and I had blood all over me. I was bleeding hard and passed a clot. Now I cramping so fn bad. Idk what's going on. Does this mean even tho I have strong opks that I'm not gonna ovulate this month or is it still possible? Confused, in pain, and heartbroken. I need help!