Coming off Fertilaid after BFP??

This was my first month taking Fertilaid for women. The directions on the bottle say to stop taking it once you get a BFP on a urine test. I started taking it because I would always spot bleed after ovulation up to AF, so I felt like my hormones were imbalanced. Since taking the Fertilaid I have had absolutely NO spotting and I got my BFP yesterday and darker lines today! :) what were your experiences? Should I wean myself off of it (taking lesser pills each day) or just stop all together and switch to my prenatal once a day? I'm scared of letting my hormones get whacky again and risk miscarrying :-/ first doc appointment isn't until 9/21