Possible Misscarriage

I am not sure how to deal with this right now, we have been trying for baby #2 for 18mths we have a 2yr 8mth old who we were lucky to get through treatment after 2yrs of trying, we have in the past 18mths has 2 failed IUIs and basically gave up, well i got my period 10days ago i knew something was off with it it was 4 days late and i felt like i had another cyst on my ovary, i went to the dr 2 days ago as i was still bleeding a very small amount and usually my periods only last a max of 5 days and are much heavier at the start and dont have cramps that last more than the first day, they did a blood test found out yesterday that it confirms i am pregnant but they are not sure if i have miscarried or not. I have to go back in today for another Anti D shot (I am neg blood type and my son is positive, had one after his birth) and for another blood test, the dr tells me that i could still be carrying but they dont know yet, this is the first time i have ever naturally conceived and i am not sure how to deal with this news right now, i know tomorrow i will have a better idea on if i have miscarried or not but this whole interim thing is killing me. I will be going through menopause very early (40) and i will be turning 35 this year and have been told if i want a baby after 35 i definitely need IVF which i just can not afford ***UPDATE- confirmed its a miscarriage, need to get more tests to make sure its passed completely now... I am numb, the first time my body works and I conceive naturally and this happens...WTF**