Quite long but seeking advice about ttc and work promotion...

So we have been ttc for 8months now and my husband works away so we are prepared for it to take a while, however a job opportunity has come up for me which would be much more money than I am currently earning, but it would mean a six month probation period and if we were to fall pregnant in that six months I wouldn't be given paid maternity leave when the time came, my question is should I still apply for the roll while ttc or continue with my current position even though it might take longer than six months to conceive ?