hi there.. just asking to some advice or ideas.

according to glow, Saturday was my last fertile day. I did the deed every other day during the week. I know it could be early, but around 8pm on Saturday I had some very light pink spotting followed by a sharp lightning pain in my lower right stomache.. could this have been my ovulation and glow could have been wrong about my fertile week? any advice would help greatly. I wouldnt mind if I were to be pregnant. I have an 11 month old daughter, getting married in january and I am completely stable. me and my fiancee have been trying but not trying as in we haven't been doing anything to prevent pregnancy. so again, advice on what this could have been would be so helpful. I didn't have any of that when I got pregnant with my daughter as I barely had any symptoms at all with her. thanks I'm advance for the help!