Does implantation have symptoms?

[mytime777]

Not due for my monthly until around 24th, not due to Ov for another 5 days but got dull aching in right ovary and been swi! It Kept me awake last night - didn't sleep until 3am!
Wondering what it could be?

Implantation can have symptoms, cramping and maybe spotting, but you can have implantation pains if you not ov'd. More likely ovulation pains you are describing?

I'm just a but confused as I had a 2 day light prd on 19th & 20th then stopped and full on on 24th for 3 days. Normally I have a light one for 3-4 days. So not sure when I would / should Ov. My calculator ( although not sure how accurate it is ) says 10th nov but if it goes from one on 19th it would be due 29th oct ?
I do normally get Ov pains but not this bad. Normally I get an ache for about half a day and nothing this strong...?