If my cycle length varies every month, could i ovulate more than once during the month?

No: You ovulate only once per cycle, but if your cycle length varies, it is usually the first half of the cycle - the time from when your period starts until the day you ovulate - that varies. The second half of the cycle, from ovulation until your next period or pregnancy, should be about 13-14 days in most women. If your cycles are very long see a rei specialist (40 days +) or if ttc without success.

No, not really: Ovulation is an event that occurs once during a cycle. It can involve release of more than one egg, but this, again, occurs once during the month. In most women, counting the first day of your period as day#1, ovulation occurs around day#14. Variation in your cycle length can occur for many reasons - talk to your doctor and see if they think there is a problem!