Pelvic scan?

Sarah-Jane • TTC 16 months💏We did it🤰🏽Sophie born 10/7/18💕
We are being referred for <a href="https://glowing.com/glow-fertility-program">IVF</a> in August (moderate oligospermia, I've a 10 year old daughter) and I've been asked to go for a scan on 26th June (not an HSG yet) as I've had all smears/blood tests etc so this is the next box to tick .. do you know what they are looking for and what it will tell me? (UK) thanks 🤔