2nd baby

So lately my husband and I decided we wanted to try for another baby. We have a 21/2 year old. I’m ovulating and we haven’t used protection or pull out. Like I said were trying but I’m scared. I’m afraid of what his family are gunna say if I do end up pregnant. My husbands sister is pregnant right now and she has always been jealous of me and josh so can you guys help me find some peace with it. My husband is 26 and I’m 24 we have our own place and everything.