Something bothering me N(this)BR long

Right after I miscarried, I began to show signs of ovulation.  A few days before that, DH and I had been having protected sex, and lets just say the condom failed.

 Fast forward a bit, I took a pregnancy test, before I could possibly get a positive, it was negative.  A few days later, I felt a bit crappy, so I took a test, it was positive.  A few days after that, I began spotting, tests were still positive.  I was sent for betas, but didn't go until a few days later (don't ask why I waited, I just did) my levels were zero with the first test.  The day I had the blood drawn, I was full period bleeding.  

I did speak to my OB about this A, when I got the positive test, and then afterwards.  After the fact, he said he didn't think I truly miscarried again, that it was just the first one, still giving me a positive test.  Well, I was so relieved to hear this, I completely forgot to mention the negative test, and I didn't like to think about it, so I never really questioned it.  

But now, it has been bugging me, and I was going to talk to my OB about it, and I completely forgot yesterday. So I just wanted to know if you think I had a CP.   I guess I shouldn't dwell on it, but it really bothers me, I possibly miscarried 3 times since DD was born (right after, positive then negative, but with blue dye, so again, I don't have any really answers there either)  I guess I am just thinking about the future, and if we want to try again. 

Sorry this got so long.