Yeah I think natural cycles are good as well.. I did 3 needles to time me up with DW but then it turned I ovulated the day before her pick up lol. I didn't find that out until the other day and obviously made no difference but I actually had our little day 5 transferred on my day 6 haha. If your body is doing well naturally then thats great!
Be warned no support in your TWW can lead to lots of testing hahaha. It's kinda cool being able to test from early on though and knowing that it can only be your little embie causing that line.