Family's are stressful

After a lot of death and tragedy the last few months, my husband and I decided lifes to short to be people pleasers. We want to start trying for baby #2. I've been eating healthy, shedding some weight and preparing my body and mind for pregnancy. I got pregnant on the first try last time, so who knows I might get lucky again. We have a 16 month old and she will be 2.5 or older when #2 comes around. We think that's a good age gap and it's a plus that she already love helping with babies. I'd like opinions on ages gaps too.

Anyways the big issue is that I hate stress, I think we all do and I want a low stress pregnancy this time. My parents are extremely opinionated. It's their way or your disappointing. Well they are NOT going to be happy about #2 (they weren't exactly thrilled about #1) but I dont want to wait 10 years for a second. We only want 2 and we want them now. I dont plan on announcing till after 20 weeks but it's going to suck, even thought it supposed to be a happy time. Does anyone else have stressful family? How can I deal with this?