This is my first time ever having a chance at having a temp spike -- because of my anovulatory cycles. Because of several u/s I KNOW I ovulated on CD16 but I haven't seen much of a temp increase.
This happened to me once and I was super stressed about it. My RE told me that taking temps can be inaccurate if you are taking clomid and ovidrel. Are you going in for a 7dpo progesterone check? This will confirm ovulation.
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In TCOYF it talks about how some people have a slow temp rise, that may be what you have going on. My 1st month charting my thermal shift wasn't very noticable, but in the days following it my temp did continue to go up little by little. I would wait and see what the next couple of days of temping brings you! Good luck! I personally think waiting to see what my next days temp is, is as irritating as waiting to test!
Re: Chart Stalk -- Ovulation without temp spike?
Mine too.