Accidentally pregnancy while family ttc

So my boyfriends sister has been ttc a really long time and I feel bad because I accidentally got pregnant and my boyfriend her little brother is having a baby before her can anyone give me advice i truly with all my heart hope she’s blessed with a baby very very soon she’s such an amazing woman I’m literally in tears typing this thinking about how much she deserves a baby... she’s been happy and supportive and asking lots of questions I just don’t know what’s too far and when to back off and give her space ect