Need some advice on announcing on FB

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DH and I were planning on announcing we're having a baby on FB tomorrow. We were going to earlier but there were still a few people I wanted to tell in person. My cousin just posted today that they are having a boy in April. I'm very excited for her. We aren't close, and it's been years since I've seen her. I'm now wondering if I need to hold off announcing. The only other people that would see it that saw hers are aunt's, uncles and some of the cousins. Again not very close to this side of the family. Do I hold off announcing or go ahead anyway?