This is my first post, sorry if it's a bit long..
So, my cycle is usually between 29 - 32 days. I had sex on days 13, 14, 17 and 19 and then had what I thought was implantation cramps on day 23. I have been really thirsty (which was similar to my first pregnancy) but no real other symptoms. I took a test on day 30 and it was negative (one line) but even the negative line was faint.. Thoughts??