Feeling worried

Madeline

Okay, so me and my SO have been ttc since November (I know it's not very long) but since then after my period I get pregnancy sympoms such as morning sickness, cramping, dizziness, headaches, back aches. but the minute I start my period again it goes away. I've been to the doctor, not pregnant and even got an ultrasound and nothing is wrong. Has this ever happened to anyone?