Delayed Period & Ovulation Tracking: Understanding Conception Timing

Question
We are trying to conceive, and I stopped taking birth control in December.  My regular 28 day cycle started Jan 10-Jan 14th.  I was expecting my next period to come Feb 6th.  Feb 6, I didnt have a period and noticed the "white egg like cervical mucas" that depicts ovulation.  So I bought both an at home PG test and ovulation kit.  Wasnt pregnant, but was showing that I was at peak for ovulation.  My husband and I had sex for 3 days skipped a day and had sex the next 2.  I took a PG test about 14 days later, and still negative.  At this point is now March 11th and still no period, but the at home PG test are still showing negative. So I have a couple of questions, is it possible for me to be pregnant and it not show on a home pregnancy test? (reason for this question a friend went 3 months w/o a period, and was testing negative for being pregnant but did end up with a positive result in the 4th month and had a baby 5 months later) Next I did go to my regular family doctor, and she said that it was just my period regulating and occassionally coming off birth control you can "skip" a period and that I should start around March 10th, at this point still havent.  So that leads to my next question- Can I see an OBGYN without having a positive pregnancy test? Also, if I am not pregnant and still not having a period is it possible for me to still ovulate?  And my final question is, if I am not pregnant is there something I can take to regulate my period so that I am not going 60+ days in between periods wondering if its possible that I am pregnant?  Obviously not birth control since we are trying ;)

Answer
If you're doing the test correctly (first morning urine), I don't think it's possible for you to be pregnant.  I would recommend seeing an OB/GYN, since I don't think you're ovulating, and he/she can help get you ovulating.  Once you do ovulate, you'll get a period 2 weeks later (unless pregnancy occurs), since ovulation is what brings on the period.  There are pills called Clomid that you can take each month to cause ovulation.  Your OB/GYN can help figure out why you're not ovulating and then get you ovulating.  Good luck.