Abnormal Bleeding

About two and a half weeks ago I had my period. It was almost a week late but it was a normal 4-5 day cycle. Well last night I went to the bathroom and when I wiped there was spotting on the tissue. It was really light pink so I did'nt think anything of it. Today, however, I am cramping like I am having a period and when I used the bathroom this morning there was red blood on the tissue. It's not like it's gushing out like a regular period , but it is still there and it is scaring me. I am having all the smptoms of my period. The cramps, bloating and back pain. I have a IUD I have had it for 7 years and I am having it removed in a week. When you have an IUD every month your supposed to check for the strings on your cervix. Well after 14 months of having it, I went to check for the strings and they were'nt tere so I called my gyno and her nurse aid that it fell out. But that was 6 years ago and my husband and I don't use protection or birth control of anykind and I have'nt been pregnant. I have no way of talking to my gyno or doc because today is Sunday and I am freaking out about this blood.