Is fertilaid right for me????!!!?

i just bought fertilaid yesterday and ive read all the success stories but im not quite sure if it will help ive been ttc for about 2 years now and nothing at all the sexual positions and holding your cervix up doesn't work ive tried prenatal pills but it made me skip 3 months of my period and i thought i was pregnant but wasn't.(so that was a big bummer) anyways has this worked for anyone ?any suggestions on what i should do?i have on a regualr cycle(33 days) really heavy bleeding usually nd baaad cramps but my period is so irregualar i cant catch my fertile days someoone pleeaase help!