Hefsek with toilet paper

I have a question about the timing of my hefsek tahara, this past Monday. I realized around 4pm as I was getting ready to do my hefsek that I did not have any bedikah cloths on me and I was at my job, which is in a small office setting, and did not have access to anything that could have been used as a bedikah cloth. I did a hefsek tahara at about 4:15 (before sunset) using a thick piece of toilet paper (wrapped several times) and it came out clean. As soon as I got home at 5:20pm, I did another bedikah with a bedikah cloth which also came out clean. Is this hefsek valid (and can I go to the mikvah tomorrow, Monday) or do I have to wait until Tuesday to go to the mikvah?

Thank you very much.

This internet service does not preclude, override or replace the psak of any rabbinical authority. It is the responsibility of the questioner to inform us of any previous consultation or ruling. As even slight variation in circumstances may have Halachic consequences, views expressed concerning one case may not be applied to other, seemingly similar cases. All health and health-related information contained within Nishmat's Women's Health & Halacha Web site is intended to be general in nature and should not be used as a substitute for consulting with your health care professional. The advice is intended to offer a basis for individuals to discuss their medical condition with their health care provider but not individual advice. Although every effort is made to ensure that the material within Nishmat's Women's Health & Halacha Web site is accurate and timely, it is provided for the convenience of the Web site user but should not be considered official. Advice for actual medical practice should be obtained from a licensed health care professional. For further questions or comments:  The Nishmat Women's Health and Halacha Site is a public service of Nishmat, The Jeanie Schottenstein Center for Advanced Torah Study for Women. This project and others like it are made possible by contributions from people like you. If you have benefited from the service, and wish to enable us to help others, click here to donate.

---

Users of Internet filtering services: This site discusses sensitive subjects that some services filter without visual indication. A page that appears 100% complete might actually be missing critical Jewish-law or medical information. To ensure that you view the pages accurately, ask the filtering service to whitelist all pages under yoatzot.org.