Please help! Ovulation...

So according to Glow ive been done ovulating for about 3 days. (And im very new to this ovulation game) Ever since having my daughter 10 months ago I can tell when im ovulating. But oddly enough I still feel like I am. Im having thick CM and very frisky, as well as very light cramping. I had some very old ovulation test but I don't think they work and I haven't gotten around to buying unexpired ones. Can woman ovulate longer then others? Any suggestions or comments please!