Implant removal - are these symptoms norm?

Hi I’m new to all this! We have been TTC. I have been on birth control for almost 10years so cant tell if this is my body being normal or trying to tell me something.

I had my implant taken out and around 7-10days later had what I remember to be a normal period 8 days long 1st Dec-9th, after this we got straight into trying, I have been following the Flo app to try and figure out when I should expect my periods and from then can work out the rest.

A few days after what Flo has as the ovulation day I had 4 days of brown spotting - never had this before! This was accompanied with heartburn/indigestion (not sure which)

fast forward a week or so I had a glass of wine with a friend which was followed by 12hours of nausea - blames the wine, there’s also been the usual pms symptoms of bloating and cramps.

But I have also been tracking my cm to see if this would help me to indicate changes on the run up to AF, but it’s been quite a lot for around 10days which has lead me to running to the loo thinking AF has arrived but it’s not.

Thursday 27th I took a clear blue early detection pregnancy test which came back negative and now I am too scared to take another as I was quite sad when I saw it was negative although I knew it’s hard to get pregnant and very unlikely in the first month, this niggling feeling in the back of my head just won’t go away!