Infertility Journey: Tracking Cycles with Provera & Clomid - Seeking Advice

Question
My husband and I have been trying to concieve for about 6 months now. I began taking provera to bring on my periods and followed up with chlomid on day 2-6 of my periods. my periods are not very heavy (light to medium) and last about five days. My last period was on june 23,2006. This period happened with out provera and happened about 29-31 days after my previous period(which was brought in by provera). I took my chlomid on day 3 instead of day 2 because my period happened on a friday after my ob-gyn's office was closed and I had to call an on call doctor to fill my perscription, so i took it day 3-7 this time. I was monitoring my ovulation days with a digital monitor(clearblue easy) on days 10-20, as my nurse practitioner suggested and I got a positive result on June 11th, which would be day 17. Hy husband and I had sex the night of the 10th, twice one the 11th, and the morning of the 12th and 13th. In the evening of the 16, I began spotting. I knew it was to early for my period, so I was a little freeked out. Again this was a friday evening (office is closed) so I called the on call doctor and has said it was probably implantation bleeding.Iwas really excited and I had a strong intuition for about a day that I was pregnant (crazy as that sounds). The feeling I had landed me at the store purchasing a hpt almost everyday. All test were negative-(I know I was testing way too soon). My nurse practioner sent me a lab slip to go get a blood preg test whenever- so I went in for it on tues, June 27th. It was negative and I was crushed. But I still have this nagging feeling inside that tells me that I am pregnant. I am not sure when I should be getting my period or if I am even late or late enough to have the detectable amount off Hcg yet. It is June 30th-still no period and a hpt this morning read negative. My nurse sent me another lab slip to retake the test. when should I go? Is my period even late yet? could I be pregnant eventhough the blood test on the 27th read negative? my feeling that i am pregnant is so strong-am i going crazy? I also would like to add that I was 99 pounds 4 weeks ago and I am now up to 113 and have have not been eating unhealthly-infact i am eating even better than ever. My breasts are tender and i am urinating about once every hour- sometimes more

Answer
I don't understand your timeline. You said that your last period started on June 23. Therefore you could not have had a positive result on June 11 (12 days prior to having your period).Any sex that you had prior to your period (June 23) could not result in pregnancy. If your last period started on June 23, you would have ovulated on July 6 and could only have conceived if you had sex around July 5,6,7, or 8. Clomid should have been started on June 27,28,29, 30, and July 1. If you did become pregnant on July 5-8, a pregnancy test will not show a positive result until July  21. If you do not get your period by July 29, take another pregnancy test.