I used the app throughout my pregnancy and now that my baby is 5mo I still check it for baby development, etc. though there are lot of articles that get repeated. I like the app except for 2 things: the articles are impossibly slow to load, to the point where I often give up (this also includes refreshing my timeline), and there seems to be no acknowledgement that babies are born outside of the US (drs appointments not according to our schedule, imperial units in articles even when metric has been selected, products listed are US only or US terminology).
RPmus about Ovia Pregnancy & Baby Tracker