Is menses during pregnancy possible?

I left my former husband for another man while having my menses. I am now pregnant for my new husband but my former husband is claiming ownership of the pregnancy. My question is whether someone can get pregnant and still see her menses?

Adijat (by SMS)

If your menses flowed very well and came for the usual normal days, then, it can be safely assumed that you were not pregnant when you left your former husband’s house. However, if the blood flow was scanty and not up to the usual number of days, then it is likely that you were pregnant for your ex -husband. A pelvic ultrasound which can confirm the actual age of the baby will go a long way in solving the problem.