I have a 29 day cycle. Had sex on day 17 and got my next period regularly. I did not have sex afterwards. Feeling nausea, stomach and back pains. I had a negative home pregnancy tets. It is possible I'm pregnant?

It's possible, but slim because you got your period AND a negative test.

Your symptoms are indicative of not only pregnancy, but UTI and/or kidney infection, as well as a stomach bug.

It would be best to wait until your next period is due to see whether it comes. If not, test again, and remember to use first morning urine when testing.

Remember that the egg is only viable for conception for 12-24 hours after it is released from the ovary. So if you are actively trying to become pregnant, it is essential to start having sex a few days before you expect ovulation to occur, as well as the day you expect ovulation.