help, any idea whats going on here?

[Hullabaloo9]

Im panicking a bit here and hope someone can reassure me a bit. Im 35 and ttc no 3. Last period started on 28 june. I had very strong positives on opk this week on Tuesday, Wednesday and dtd Wednesday. All good. Thursday I had slight spotting which is unusual for me. This continued and yesterday turned into a strong flow. Its still strong today, now more like a period. Im usually so very regular and anyway surely day 14 of my cycle is waaay too early for af. Anybody got any clue what could be going on?

Sounds a bit heavy to be an implantation bleed, but a bit early to be a period.
The only way to know for sure is to wait it out another firtnight and do a pregnancy test.
But if the mid cycle bleeding continues, definitely pop to your GP.
Sorry, I've not been much help at all!
Hopefully someone will come along soon to offer more knowledge.