cycles and signs i'm not pregnant

[orangeflamingo1]

I just wonder if anyone experiences similar, I will seek medical advice too.....
being ttc for about 8 months. I test and ovulate day 14/15 but then by day 17/18 i'm getting symptoms i always get of stomach ache etc By day 21 i've often started a very slow sluggish start to period then AF proper starts by 29.
I don't ever feel i've got a window of waiting as I instantly know i'm not if that makes sense....

I always have a week of feeling like I've got cramps before I start. Sometimes it's unbearable, other times it's just an inconvenience. I think it's normal though, but you're right, medical advice might pick something up for you.

Currently pregnant with DC2 now but I thought I wasn't because I had the same feelings of being about to start AF so I actually couldn't tell the difference.