I recently told my parents after 16 months, tests and a visit to the IVF clinic as it seemed as though IVF was our next logical step. We made it clear how hard this journey has already been for us and that we would need their support and understanding but not constant questions about how things are going. So far (about 5 weeks) we've had NO questions about anything, which has been great.

However, we haven't told DH's Mum because we're pretty sure she wouldn't leave us alone and would have no idea how to help and not hinder, IYKWIM!

We also wanted to surprise everyone with the BFP too, but it will still be a surprise whenever it does happen for you.

My advice is to go with your gut feeling. If you feel like you're gonna need the support, then go for it. Make it clear what you do and don't need from them, and that now they know you're ttc, YOU will let them know how things are going if you don't want them asking all the time.