My husband and I had sex last Friday and Monday before he left for work. I have three different apps to follow my period. Last month I did not have period at all - It came on May 1st. It lasted 6 days. My apps have been telling me that I am fertile this week and they say ovulation is suppose to happen today. I went to bathroom and when I wiped there was very light pinkish color. I am just wonder if this a sign of implation ?? I have been having a headache every day, along with nausea, bloating, and I can smell anything. We have ttc since Febuary and we are hoping this is a good sign.