I'm doing a natural FET cycle and there is one large follicle per ultrasound scans. I only have one frozen embryo to transfer so I was thinking of attempting to naturally add another embryo to the mix by having sex after the trigger shot. I messaged my nurse with no response and the studies online provided mixed results.

I was wondering if anyone knows if there is any risk (besides that of multiples) of having sex after the trigger shot and before the transfer?