Asking me if baby is planned

Ri

We have 2 boys and I miscarried in the fall this year. I'm pregnant again. I'm also scared and baby and myself are both high risk due to my health. My husband wanted to start telling family we told his sister first who we have a good relationship with. We are also independent have no outside help. I'm a SAHM and run daycare from my home. We are financially fine and have a great marriage. SIL asked me if our baby was planned? Took me by surprise! We don't have to explain to anyone our choices we didn't think anyone would be anything but excited for us. After a while they both offered to help watch our boys if ever needed as we've never asked for help and baby and myself have a lot of appointments. Just really saddened me and it makes me not want to share our news.