It's hard to say.
An average which is often quoted is that most women ovulate 12-16 days before the first day of their period. If that average applied for you, you would be ovulating between days 9-13 after the first day of your previous cycle.
Have you heard about looking for differences in your cervical fluid? When you wipe and it is stretchy and like raw egg white, this is fertile fluid (which helps sperm). You can have patches of this "EWCM" through your cycle, but many women have quite a bit around when they ovulate. When it disappears, that is because you have already ovulated. This might be a useful non-invasive way for you to figure out when you normally ovulate.