Hi Kelly
I have just done IVF last cycle but previously did 4 IUI injectible cycles.
When AF came it was CD1, then it was go in for BT on CD2 for base levels, from there it was injectibles up to trigger shot for ovulation. Also had u/s in the days leading up to trigger to check on the follies.

We never had a break in between, just kept going.

I imagine that since you will be part way through a cycle you will have to wait til CD1 to start.

When starting at the clinic I had heaps of BT done for various things, but not sure what they all were, just know that they must be ok because they didn't call.

It is a bit freaky at the start but the injectibles are using a 'pen' and even I could do it myself (I have a needle phobia).
I hope it works out for you and you don't become an 'old hand' at it.

Take care