Didnt think pregnancy was possible for me...

Ever since I was about 21 years old, I thought it was not possible for me to have children. Tried for quite a few years and my period was NEVER regular during this time either which caused me to take several pregnancy tests during that 6 year relationship.  After that relationship ended I just figured it wasn't possible. When I was 28 my periods became VERY normal.Now, a little over a year into a relationship with someone who really loves me, he is a few years older with no children and told me he had slow swimmers lol. So about three weeks ago I started feeling super sleepy all of the time and nausea but not actually throwing up( I did 2 times and there was nothing in the tummy to let go but the tummy fluids) but just felt as if I was going to be ill for about 75% of the time that I would be awake.  Then, I felt back to normal for about a day and a half and Wednesday it was back to feeling sick again, but the actual throwing up had started.  I just knew something was not "normal" to my body and I also know that if it was the flu or a bug of some kind my love and friends would have gotten at least a touch of it as well.  Grabbed a cheapie EPT since it was the only kind the grocery store had.  Took the test on Thursday and it was definately a positive.  The vertical line of the "+" sign was the first to show up. I was in complete awe.  Took another one this afternoon thinking it was a fluke of some kind and I even got the real EPT and before I could even set the test down...BOOM another postive.  So I am wondering if this is possible, have any of you ladies gone through anything like this? I dont know yet if I should be happy or still leary of the results.  Thanks for any info you girls can give me!