Husband didn't ejaculate

I'm sad because today is the last day of my fertile period that there is a moderately good chance of conceiving (19%) and my husband didn't ejaculate. :( He said he did but I didn't feel anything come out like I usually do and I stuck my finger in afterward and there was nothing there. Usually it feels like a puddle of wetness (sorry). I feel sad about it and like we missed a chance. This is our fifth day straight having sex. Wonder if it was too much. :(