Ready to give up??

Charlotte
Anyone else ever experience bleeding during ovulation? 
Period was two weeks late as of today...still negative pregnancy tests....I used my OPK this morning and it was positive! Then I started bleeding this afternoon. And cramping horribly.
 Period?? How can you have positive ovulation and then a period in the Same day??! 
I think this is getting too hard and I'm ready to give up.