Has anyone ever experience this!!!!

I’ve NEVER been late before unless I was pregnant. I’ve been pregnant several times before and never had any pregnancy symptoms. I Bd the whole week of ovulation in April. AF came as scheduled for a few days but not heavy as usual it was a lighter flow. After AF I started to take Evening Primrose Oil caps. I haven’t bd since April but now I’m on cd 34 and no signs of AF. Can it be the evening primrose oil or what???? So confused 😩😩😩😩