I am 37. Four years ago，I had done two full cycles with three transfer. The last one was successful as i insisted to do an assisted hatching together with a day 4 transfer.

Now，i am trying for a second baby and am doing ivf in another hospital. I had 4 embroyos. I had a fresh transfer of day 2 embroyos and wasn’t successful. This time，i asked for cultivating my thawed day 2 embroyos till day 5 and have an assisted hatching. Both of my embroyos made it to day 5 but the doctor said day 5 blast do not require assisted hatching as its shell has been thinned. I didn’t insist and had the transfer.

Now, i am worrying about whether my blast can hatch out of its shell given i had three previous fresh transfer of quality embroyos and didnt make it.