Is bbt dip work with ivf

[BlackLotus]

Just wondering . Is it only for natural cycles or can you use it for ivf. I'm 4 days past 5 day blast when would you expect a dip

Usually the bbt relates to ovulation. I did have an implantation dip on a natural cycle were I was pregnant but I also had one on a natural cycle where I didn't have a dip and was pregnant.
I never tracked it when doing the ivf I guess no harm in monitoring it but I don't know if it whether it would be the same as you've so many other drugs in the mix in ivf that can effect things. I did do a test at 5DP5DT as I felt pregnant and was impatient!