I have been worried sick about losing this pregnancy. I decided yesterday to just enjoy it and that everything will be ok. Well this morning I started spotting. First very light brown now it is dark brown like a rust color. I am going to call my ob in the morning to see if I can come in early just to ease my mind. I panicked this morning and took another test. Does this still look pretty strong? 5 weeks today. Not sure why the control line is so thick.