Kim, yes spotting during any other time than right before or right after af can be a sign of a potential problem regarding cervical screening or abnormal cells. I have to say it probably isn't, most of the time it isn't anything to be concerned about but if you are due a smear, I would book it so you know for sure.
Of course when you are ttc spotting in the TWW can be a sign of implantation so wouldn't be anything to worry about. You can also see some spotting when you ovulate as well.
The main things to look out for regarding potentially abnormal cells are spotting or bleeding between periods, pain during sex, pelvic pain, lower back pain, cm that isn't usual cm like if it smells weird or anything... I can't remember the other things! But even each of these are usually down to other things. Like I had a funny smell after sex a while ago and had had lots of watery cm for ages, turned out to be BV which is usually easily treatable with pessaries. I have always had some lower back pain which I put down to poor posture and having big boobs. I can sometimes experience pain or pelvic pain during sex depending on the position, but this isn't unusual for me.
So, don't think this is a cause to panic, and don't worry about having a smear done during pregnancy because they are completely safe. If you had a smear during pregnancy it can throw the results off and cause a false abnormal reading, so if you are due a smear it's probably best to have it done sooner than later as you are ttc.
It's highly likely though that the spotting you saw wasn't anything to worry about.
I reckon you have a couple of days, mine tend to look like yours soon before they turn positive, but it can vary for everyone.
Citrus - yay for being in the TWW! I think your timing is good, especially if trying to gender sway. Don't think dtd was wasted yesterday, I know most advice is the egg lasts a day, but I have read quite a few times it can live a little longer in some cases. Plus you won't know the precise time of ov, so I would say you timed things perfectly fine
Jessy - Bepanthen is good for tattoos, to help them heal. Also, if it's sore still try putting a bag of frozen peas on it to calm it down. I had a fairly sizeable tattoo in the same place and it hurt far more afterwards than during!
Yes I'm currently in the TWW as well. Fertility Friend puts me at 3dpo today and ov at CD10 but I think I ovulated CD11 since my darkest positive was then. We will see I guess, luteal phase is usually 14 days