Evening Primrose Oil Caps.

I have been taking Evening Primrose Oil capsules for about 5 weeks as directed on the bottle. Does this supplement delay periods? My period is beyond late. I have taken tests and I’m not pregnant. I did some basic googling and say that since I am TCC, I should stop taking it after I ovulate. However, my doctor told me to use protection until my next cycle. SO I have been impatiently waiting for my period! (I miscarried late January and have not had a period since. I did have some light bleeding after my D/C in early February.)

Does anyone else have an experience with this supplement?