infertile at 20-8 (new fertility issues&& maybe a false bfp)

hey ladies,sorry its been so long since i'v posted but so much has been going on! Well firstly rj and i started having relationship issues,so we decided not to ttc any more,and try to get our lives together again,its really been stressful. Then i found out that i do have high levels of fsh and my left tube is blocked,that can be fixed with surgery but the dr said if i dont want surgery i can take fertility drugs to force ovulation out of the right tube,the high fsh levels meaning menopause or i dont have as many and healthy eggs as i should,the doctor said can be caused by a thyroid disease,but everything came back ok on the test,the doctor said i can take more fertility meds...but he thinks with the high fsh and the block tube IVF would be our better option....can you say that i was shocked,firstly im only 20 years old and i need ivf and im pre-menopause?? i cried be cause its the only things i could do,secondly we can not afford ivf! thirdly we were suppose to be taking a TTC break,but now i dont know if my eggs would have allowed me to, I dont have that much time,So before all of this happened i only took soy 160mg days 1-4,and decided not to do the clomid this cycle,on day 5 i decided not to take the last dosage of soy because,we werent going to ttc any more...the days ticked by and we BD not preventing because then we have gotten the news about my eggs/blocked tube and ivf. BUT something told me to take a pregnancy test on DPO ten and i got a BFP...WHAT after all that i get a bfp?? im still in denial that im pregnant,my period is due sunday and my boobs are sore,and i have been cramping on and off for a few days,i used a test strip that i bought online and im not convienced,I told Rj and he's been rubbing on my belly and saying things like oh your breast are swollen and like if i sneeze...he'd go "your gonna have morning sickness" its so cute to see that he's excited,but i hope that my period doesn't come because if it do,not only will i be disappoint he will be too.I'm not excited at all because...i guess i dont have any excitement left in me,until i see a heartbeat or a positive blood test....i have been praying like crazy that this is really it because if not..i dont know where we go from here because ivf is out of the question,its not covered in my insurance....i dont understand after all the things the doctor told me over the last few weeks how can i be pregnant now?? even after two years of trying...ugh i guess i will keep you all posted on me sunday