It has been 4 years of ttc I have PCOS and my DH has low sperm count

It has been 4 years of ttc I have PCOS and my DH has low sperm count. Last year we decided to go to an RE to see what we can do we went through several rounds of clomid and TI no success. We then went to IUI with clomid bfn then went with injectables again bfn. So decided to take a break after September 2013 and started doing natural herbs and Qivana products. Last month we went back to the RE for last iui before we go to ivf did it with again injectables it was a rather weird cycle because ended bleeding halfway thru but had two follicles on the left and one of the right which my right never responded had the 2 back to back iuis. Didn't have too much symptoms this time I blamed it on the progesterone I was taking it wasn't until 10dpo I started cramping and 11dpo cramping bad I thought I was out and this was another failed cycle but no blood 12-14 dpo cramps got worse so took some Tylenol and that night woke up in the middle of the night in pain from the cramps so today 15dpo I decide I couldn't wait for my blood test to see in fact I am or not I took a hpt to see if I was so I can take Motrin for the cramping and excepting to see a bfn again like I always have I saw the first time of the two line mark it showed up in now even a second. I couldn't believe there is two lines for the first time. I'm going for my bloodwork tmrw morning it still feels unreal