Ok so my hubby and i had sex yesterday. yesterday was also my most fertile day. after sex I noticed bright red bleeding. only lasted a little bit so I wasn't concerned since I am ovulating so the sex could've irritated my cervix. then this morning I woke up with a headache that just will not go away. I've been drinking ice water all day (which I normally hate) and I've been eating normal and the headache will only subside for maybe 10 minutes before it comes back. this is very weird for me. what do you ladies think? is it even possible to think you're pregnant or exhibit any symptoms 1 DPO?