My husband and I announced our pregnancy to my BIL and SIL yesterday by showing them a scan picture. SIL said they had known for ages and had been watching my moves for months and that it wasn’t at all a surprise. I was so taken aback as my husband and I hadn’t told anyone our news and didn’t come up with excuses about not drinking etc by swapping drinks at family get togethers etc. They didn’t congratulate us and that was the end of the convo. I was quite upset at her comments and his lack of interest so I text her earlier saying how upset I was at her reaction. BIL is now attacking me for making her upset! AIBU? The only thing that made me text her was because she had text me saying you need to find out the sex. Tell me off if you think I overreacted...