LATEST: The Britney Spears pregnancy mystery has deepened - a second message claims the singer miscarried her unborn child. Speculation about the singer's reported pregnancy started when a message on the social networking website, claiming to be from Spears, revealed she was pregnant with music producer J.R. Rotem's child. Rotem later confirmed the reports in a text to an American magazine. He then denied them. Now, a second message on the same site - dated 28 November (07) - claims Spears lost the baby. It reads, "I don't really want to talk about it, but I will say that I have not been feeling well (cramps and spotting) for the past few days. "I finally saw my doctor, and she said it was too late."