Three days late second cycle of 100mg of clomid. My cd15 scan showed 3 follicles. Cd24 labs progesterone levels were 7.1. Now I'm 3 days late on my cycle and had 2 BPNs. I have never been late, even on my first cycle of clomid. Trying to see if anyone else had this problem on clomid. I'm worried because I have RH neg blood and I'm suppose to get a shot as soon as I find out I'm pregnant. I've seen so many stories of BPN for weeks then finally a BPP.