contradicting information

Ba
it might be funny or not but its getting confusing. 
i dont know for sure how far i am in the pregnancy
storie goes like this, please be patient. 
I was taking the pill for birth control had a hormonal set back and stopped. 
This was in June, after that i had sexual intercourse, regular basis sometimes protected sometimes not protected, as i have the one partner it went with the flow. 
I did not have my period for +- 3 months. i gained weigth, i was never that skinny but i cant tell u i gained about 13kg during this time. 
in october i did pregnancy test came negative, thinking it was too soon did another later, still negative. decided with my partner that i had to go to the doctor, it was going to month 4 no period its not good. 
Did blood work, was told i was unable to bare children due to weigth due to hormones, due to my ovaries, did ultrasound did alot a things there, got negative on cancer, got strange hormone readings. 
Started crying cause the md pointed this as i had it coming its my fault. 
took anti depressant and took hormones to balance off the diferences started to diet. 
not a week in i started vomiting, dizzyness, sleepyness, ill disposition grumpy, my partner tought i was feedup with him, i started thinking he did not want anything whit me because i would not be able to give birth ever as per the doctor... 
after that october month as 2 weeks of this I had a heartfelt open conversation whit my partner, and we got to the conclusion, that i was going to stop the medication. and by the end of one week as we got paid i was going to do another test. its going to be negative but we are just going to be sure. 
positive test... there i was pregnant... never really got a period just conceived somewhere along the way... 
i was happy but confused and scared... how come? as i was told, other wise.
he just wanted to tell the world, did not happen lol
Now ever since that day all ultrasound say a age and all doctors say another. 
1st ultrasound the baby had 8 weeks 2 days - i ws shocked i wanted to cry i tought it was smaller
2nd ultrasound in the gn/ob a few days apart she stated 9 weeks. 
then in december the second check up performed 
1st baby had 10 weeks on og/gn second baby has 11 weeks 3 days. on the hospital check up 
now the 3erd check up and last one on ob gen she stated 13weeks 2 days on the hospital check up 14weeks 2 days
all of these are made in the same week next month i have again the double check up (why because privat sector and state dont really comunicate witheach other and i have rigths that i lose if public sector knows im on the private blah blah too long and complicated for now) 
So i dont  really know how far im really 😂😂😂😂 i know its growing moving healthy.
i know its due in july 2017 but apparently can be anywhere btw the 8 and the 16th ... 
has this anythning to do with. ot bei able to know the rigth conception date? 
or all machines are ruined :) cause i cant really figure the one out why there are these major diferences 

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