Feeling nervous

Husband and I have been TTC baby #1 since July, & I’m currently in my TWW, and just found out my sister is miscarrying from an ectopic pregnancy (they had not announced) 😢 my husbands sister has also suffered multiple miscarriages and I’m nervous not only that I won’t be able to conceive, but that it won’t be fair to my sister and SIL if I do. Feeling very down today and helpless... Sad that my dream of being a mom won’t ever happen