HSG now, or next cycle?

We have been TTC for 8 months. We have a 6 and 3 year old we conceived quick and easy. So needless to say we’re shocked our third is taking this long to conceive. I recently went to a reproductive endocrinologist and she was super quick to send me a ton of tests to get done. When i first went to my ob gyn about my concerns, she said she would refer me to an RE doctor for hormone level/ egg count bloodwork and an ultrasound to make sure all looked good. Depending on the results for that, then she would suggest getting an HSG test done. But this Reproductive endocrinologist said to get all of it done in one shot.

Im thinking the same thing as my obgyn. Wait until my hormone levels and egg reserve results come back, plus have my husband do a sperm analysis, and then if those tests come back fine, then i know it would be wise to get the HSG test done. Does that make sense?

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