I’m 10dpo and my boyfriend finished in me on the day before ovulation & the the day of. My boobs are heavy and sore, I’m really emotional, back ache and minor cramps. I tested today and got a negative. I also have a crazy headache tonight. Is it possible I still may be pregnant and my app may have been off? I’m at a loss. My boobs never ache like this before my period. Help!