help please 😪😪 really looking for advice

So I've been bleeding since Sept 16, last few days I'd been bleeding so heavily, like bleeding through super plus tampons every 2 hours 🙈 my husband and I are trying to conceive so it's been really rough and frustrating. I went to the doc on Monday and was told being on BC would help regulate me then help with TTC. I understand the concept but I'm a little skeptical. Has anyone else been through this? Also how long did u stay on BC before getting a regular period and going back to TTC?