I don't know anything about its effect on fertility. I know people who have conceived while on SSRIs, but that's purely anecdotal.
It's going to be a judgement call on your part. SSRIs have been in use for long enough that I would expect there's a big pool of data around fertility rates, even if it's not had much analysis done on it. Also, rat models are useful but need to be understood in their context. One study in rats is not overwhelming evidence.
There are sides?!