Rumors are swirling that Rihanna is pregnant. This is just days after Rihanna cancelled her Houston and Dallas tour dates this past weekend -- which totals four dates she has missed already on tour due to illness.. According to TMZ, RiRi was spotted walking out of a medical building in Beverly Hills. She is reportedly doing a lot better. RiRi took to Instagram to explain why she cancelled the dates, saying, "I was sick since San Diego! I kept working because I thought two days off after the Vegas show would be enough time to recover and I f**ked up, those were two days off from hell and today is not different! I'm sad and disappointed about it! I had all kinds of plans for Houston!" According to E! News, sources close to the superstar say that she is not pregnant.