Further to rowyn's post, above - I had very light post-menopausal bleeding 3 times, and this was treated as an emergency by the GP, with an immediate referral to gynaecology for a hysteroscopy within 2 weeks each time. The gynaecologist found 2 polyps on the third visit, and I'm back for a 6-month check up in June.
I'm surprised your GP hasn't referred you, maybe hospital services are affected by Covid in your area? Every GP I've spoken to during one of my bleeds has been insistent on using the fast-track referral to hospital.