My husband and I been trying to conceive for three years now. Been to a fertility doctor I had a hsg done which was normal. My husband been tested he was great.

Anyways I decided to take vitex a couple months ago and it helped me so I added fertilaid this month to help boost things. I also used progesterone cream after I ovulated. This month I ovulated later then I ever have on CD 20 according to clearblue ovulation kit and I started spotting/light bleeding on CD 33. Today is CD 38 I'm still spotting and AF was suppose to be on CD 37 ( yesterday ). I have taken two test both are negative. I have zero cramping with it. Is this normal to be happening when taking fertilaid? Am I having a reaction to it? Should I stop taking it? Taking to much of everything? Please help!